Clean up legacy CSSBackgroundDrawable.java and enablNewBackgroundAndBorderDrawables featureflag (#53534)

Summary:
Pull Request resolved: #53534

BackgroundDrawable and BorderDrawable have already substituted CSSBackgroundDrawable en every Android surface.
- Deleting CSSBackgroundDrawable.java and its callsites
- Deleting enableNewBackgroundAndDrawable featureflag

Just cleaning up what at this point is just dead code.

Changelog: [Internal]

Reviewed By: javache

Differential Revision: D81330969

fbshipit-source-id: bcf66ec8d3225802432ae1d93a2b26ea65cfcda0

Author: jorge-cab

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlags.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<34c12f5a31aab5bfb874953f1beefef1>>
+ * @generated SignedSource<<6a0977519362184efd85bd1807b2ad25>>
  */
 
 /**
@@ -222,12 +222,6 @@ public object ReactNativeFeatureFlags {
   @JvmStatic
   public fun enableNetworkEventReporting(): Boolean = accessor.enableNetworkEventReporting()
 
-  /**
-   * Use BackgroundDrawable and BorderDrawable instead of CSSBackgroundDrawable
-   */
-  @JvmStatic
-  public fun enableNewBackgroundAndBorderDrawables(): Boolean = accessor.enableNewBackgroundAndBorderDrawables()
-
   /**
    * Enables caching text layout artifacts for later reuse
    */

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxAccessor.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<392da016e0bf4193b72c44a508811e10>>
+ * @generated SignedSource<<b9e541c9817e3ef4555ace90b7dfe821>>
  */
 
 /**
@@ -52,7 +52,6 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
   private var enableModuleArgumentNSNullConversionIOSCache: Boolean? = null
   private var enableNativeCSSParsingCache: Boolean? = null
   private var enableNetworkEventReportingCache: Boolean? = null
-  private var enableNewBackgroundAndBorderDrawablesCache: Boolean? = null
   private var enablePreparedTextLayoutCache: Boolean? = null
   private var enablePropsUpdateReconciliationAndroidCache: Boolean? = null
   private var enableResourceTimingAPICache: Boolean? = null
@@ -378,15 +377,6 @@ internal class ReactNativeFeatureFlagsCxxAccessor : ReactNativeFeatureFlagsAcces
     return cached
   }
 
-  override fun enableNewBackgroundAndBorderDrawables(): Boolean {
-    var cached = enableNewBackgroundAndBorderDrawablesCache
-    if (cached == null) {
-      cached = ReactNativeFeatureFlagsCxxInterop.enableNewBackgroundAndBorderDrawables()
-      enableNewBackgroundAndBorderDrawablesCache = cached
-    }
-    return cached
-  }
-
   override fun enablePreparedTextLayout(): Boolean {
     var cached = enablePreparedTextLayoutCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsCxxInterop.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<a0453230524ebca2bfb8fad656a6f54a>>
+ * @generated SignedSource<<7b0b5efc545427de6f104cc36f42d0a9>>
  */
 
 /**
@@ -92,8 +92,6 @@ public object ReactNativeFeatureFlagsCxxInterop {
 
   @DoNotStrip @JvmStatic public external fun enableNetworkEventReporting(): Boolean
 
-  @DoNotStrip @JvmStatic public external fun enableNewBackgroundAndBorderDrawables(): Boolean
-
   @DoNotStrip @JvmStatic public external fun enablePreparedTextLayout(): Boolean
 
   @DoNotStrip @JvmStatic public external fun enablePropsUpdateReconciliationAndroid(): Boolean

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsDefaults.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<719706a983a073b6c286c49d993f7f80>>
+ * @generated SignedSource<<7de4be16480ca4df9f2a6655a469c6c7>>
  */
 
 /**
@@ -87,8 +87,6 @@ public open class ReactNativeFeatureFlagsDefaults : ReactNativeFeatureFlagsProvi
 
   override fun enableNetworkEventReporting(): Boolean = false
 
-  override fun enableNewBackgroundAndBorderDrawables(): Boolean = true
-
   override fun enablePreparedTextLayout(): Boolean = false
 
   override fun enablePropsUpdateReconciliationAndroid(): Boolean = false

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsLocalAccessor.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<594815ba6a984c460ab8bddd91c5cae2>>
+ * @generated SignedSource<<72146cdfb6cc16ead73858c970e4221a>>
  */
 
 /**
@@ -56,7 +56,6 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
   private var enableModuleArgumentNSNullConversionIOSCache: Boolean? = null
   private var enableNativeCSSParsingCache: Boolean? = null
   private var enableNetworkEventReportingCache: Boolean? = null
-  private var enableNewBackgroundAndBorderDrawablesCache: Boolean? = null
   private var enablePreparedTextLayoutCache: Boolean? = null
   private var enablePropsUpdateReconciliationAndroidCache: Boolean? = null
   private var enableResourceTimingAPICache: Boolean? = null
@@ -414,16 +413,6 @@ internal class ReactNativeFeatureFlagsLocalAccessor : ReactNativeFeatureFlagsAcc
     return cached
   }
 
-  override fun enableNewBackgroundAndBorderDrawables(): Boolean {
-    var cached = enableNewBackgroundAndBorderDrawablesCache
-    if (cached == null) {
-      cached = currentProvider.enableNewBackgroundAndBorderDrawables()
-      accessedFeatureFlags.add("enableNewBackgroundAndBorderDrawables")
-      enableNewBackgroundAndBorderDrawablesCache = cached
-    }
-    return cached
-  }
-
   override fun enablePreparedTextLayout(): Boolean {
     var cached = enablePreparedTextLayoutCache
     if (cached == null) {

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/internal/featureflags/ReactNativeFeatureFlagsProvider.kt

@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<dfbd5e84392f1fda0e68324582c328b2>>
+ * @generated SignedSource<<47efc0544de6bdeec45ee4a7f1aa31fa>>
  */
 
 /**
@@ -87,8 +87,6 @@ public interface ReactNativeFeatureFlagsProvider {
 
   @DoNotStrip public fun enableNetworkEventReporting(): Boolean
 
-  @DoNotStrip public fun enableNewBackgroundAndBorderDrawables(): Boolean
-
   @DoNotStrip public fun enablePreparedTextLayout(): Boolean
 
   @DoNotStrip public fun enablePropsUpdateReconciliationAndroid(): Boolean