comments: remove JIRA ticket reference from code comments

Author: Shivanshu-07

src/main/java/io/percy/selenium/Percy.java

@@ -605,7 +605,7 @@ private String buildSnapshotJS(Map<String, Object> options) {
     }
 
     /**
-     * Readiness gate (PER-7348): runs PercyDOM.waitForReady BEFORE serialize.
+     * Readiness gate: runs PercyDOM.waitForReady BEFORE serialize.
      *
      * Uses executeAsyncScript with a callback signal. The embedded JS checks
      * typeof PercyDOM.waitForReady === 'function' so older CLI versions that
@@ -766,7 +766,7 @@ private Map<String, Object> processFrame(WebElement frameElement, Map<String, Ob
     }
 
     Map<String, Object> getSerializedDOM(JavascriptExecutor jse, Set<Cookie> cookies, Map<String, Object> options) {
-        // Readiness gate before serialize (PER-7348). Graceful on old CLI.
+        // Readiness gate before serialize. Graceful on old CLI.
         Object readinessDiagnostics = waitForReady(jse, options);
 
         Map<String, Object> domSnapshot = (Map<String, Object>) jse.executeScript(buildSnapshotJS(options));

src/test/java/io/percy/selenium/SdkTest.java

@@ -1109,7 +1109,7 @@ public void captureResponsiveDomRefreshesDriverForEachWidthWhenReloadFlagSet() t
         }
     }
 
-    // --- Readiness gate (PER-7348) -----------------------------------------
+    // --- Readiness gate -----------------------------------------
 
     @Test
     public void readinessRunsBeforeSerializeAndAttachesDiagnostics() throws Exception {