Remove public

Author: samedson

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/FirebaseCrashlytics.java

@@ -371,16 +371,6 @@ public void setCustomKeys(@NonNull CustomKeysAndValues keysAndValues) {
     core.setCustomKeys(keysAndValues.keysAndValues);
   }
 
-  /**
-   * Sets an internal key and value that are associated with subsequent fatal and non-fatal reports.
-   *
-   * @param key A unique key
-   * @param value A value to be associated with the given key
-   */
-  public void setInternalKey(@NonNull String key, String value) {
-    core.setInternalKey(key, value);
-  }
-
   // region Unsent report management.
 
   /**

firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/internal/common/CrashlyticsCore.java

@@ -356,6 +356,9 @@ public void setCustomKeys(Map<String, String> keysAndValues) {
    * trimmed ({@link String#trim()}), and keys or values that exceed 1024 characters will be
    * truncated.
    *
+   * <p>IMPORTANT: This method is accessed via reflection and JNI. Do not change the type without
+   * updating the SDKs that depend on it.
+   *
    * @throws NullPointerException if key is null.
    */
   public void setInternalKey(String key, String value) {