chore: opt code

Author: sinyu1012

library/build.gradle

@@ -14,8 +14,6 @@ android {
         minSdkVersion 21
         targetSdkVersion 30
 
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-        consumerProguardFiles "consumer-rules.pro"
     }
 
     compileOptions {
@@ -29,8 +27,8 @@ android {
 
 dependencies {
 
-    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
-    implementation 'androidx.core:core-ktx:1.3.2'
-    implementation 'androidx.appcompat:appcompat:1.2.0'
-    implementation "androidx.recyclerview:recyclerview:1.2.1"
+    compileOnly "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    compileOnly 'androidx.core:core-ktx:1.3.2'
+    compileOnly 'androidx.appcompat:appcompat:1.2.0'
+    compileOnly "androidx.recyclerview:recyclerview:1.2.1"
 }