Revert "Throw an explicit exception if content provider process times out"

This reverts commit 16e83d2a.

Reason for revert: Droidcop-triggered revert due to breakage 
https://android-build.googleplex.com/builds/quarterdeck?testMethod=testConstructor_protectedCancellableEsc&testClass=android.app.cts.DialogTest&atpConfigName=suite%2Ftest-mapping-presubmit-retry_cloud-tf&testModule=CtsAppTestCases&fkbb=6633955&lkbb=6642068&lkgb=6633902&testResults=true&badBuildCount=147&branch=git_master&target=cf_x86_phone-userdebug

, bug https://buganizer.corp.google.com/issues/160310602

Change-Id: I3b04175290a9044ff26800ecc4b382c68f76597e