Do not call buildInputMethodListLocked twice

Skip the call in PHASE_ACTIVITY_MANAGER_READY, because the list of input
methods hasn't change since buildInputMethodListLocked was called in the
constructor.

Bug: 32343335
Test: manual
Change-Id: Iabd475a9f825e9b49ae9fd2108009d2c34ee9738

services/core/java/com/android/server/InputMethodManagerService.java

@@ -1105,7 +1105,6 @@ public class InputMethodManagerService extends IInputMethodManager.Stub
                     mWindowManagerInternal.setOnHardKeyboardStatusChangeListener(
                             mHardKeyboardListener);
                 }
-                buildInputMethodListLocked(!mImeSelectedOnBoot /* resetDefaultEnabledIme */);
                 if (!mImeSelectedOnBoot) {
                     Slog.w(TAG, "Reset the default IME as \"Resource\" is ready here.");
                     resetStateIfCurrentLocaleChangedLocked();