Remove performRestart in performResume

TransactionExecutorHelper#getLifecyclePath will resolve the needed
lifecycle steps. So when resuming, performRestart is already called
once from TransactionExecutor#performLifecycleSequence. Then the
later performRestart from performResume is the 2nd time and it is
no-op (mStopped was set to false).

Bug: 127877792
Test: CtsWindowManagerDeviceTestCases
Change-Id: Id405a44982b7581c52bc81120bf0a9b698a2b38e