Rename removeAllProcessGroups() into removeAllEmptyProcessGroups()

Make the function name match the function behavior.

Change-Id: I37b07fdd21d11ec9e19646bca5b2019a6e8e913a
Signed-off-by: Bart Van Assche <bvanassche@google.com>
diff --git a/core/jni/android_util_Process.cpp b/core/jni/android_util_Process.cpp
index 18c60a7..91dfc60 100644
--- a/core/jni/android_util_Process.cpp
+++ b/core/jni/android_util_Process.cpp
@@ -1245,7 +1245,7 @@
 
 void android_os_Process_removeAllProcessGroups(JNIEnv* env, jobject clazz)
 {
-    return removeAllProcessGroups();
+    return removeAllEmptyProcessGroups();
 }
 
 static jint android_os_Process_nativePidFdOpen(JNIEnv* env, jobject, jint pid, jint flags) {