Remove invalid null check for callingPackage

getLaunchedFromPackage() will never return null. As such, remove the
null check while processing a session based install

Bug: 399881067
Bug: 364604008
Test: atest CtsPackageInstallTestCases CtsAppOps2TestCases
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:bb685f98972b3e35727ca1444bd8e9937a15aedf)
Merged-In: If214150e6811b6ae833d63b9e8831ee027673628
Change-Id: If214150e6811b6ae833d63b9e8831ee027673628
1 file changed