Fix error handling for non-dynamic permissions

We only allow removing dynamic permissions. When removePermission() is
called for a non-dynamic permission, in addition to logging it, we
should also return early to avoid the removePermission() call.

Test: manual
Bug: 321555066
Fixes: 321711213
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:528a87e90ff9354581d54fd37fbe9f95cccbcdb1)
Merged-In: Ie2f43663bc71a06ffadb868d2d0eea5ee78f76e5
Change-Id: Ie2f43663bc71a06ffadb868d2d0eea5ee78f76e5
diff --git a/services/core/java/com/android/server/pm/permission/PermissionManagerServiceImpl.java b/services/core/java/com/android/server/pm/permission/PermissionManagerServiceImpl.java
index 2499529..a79f912 100644
--- a/services/core/java/com/android/server/pm/permission/PermissionManagerServiceImpl.java
+++ b/services/core/java/com/android/server/pm/permission/PermissionManagerServiceImpl.java
@@ -695,6 +695,7 @@
                 // TODO: switch this back to SecurityException
                 Slog.wtf(TAG, "Not allowed to modify non-dynamic permission "
                         + permName);
+                return;
             }
             mRegistry.removePermission(permName);
         }