Revert "surfaceflinger: work around dumpsys lockup"

This reverts commit 843460d1d8ced54ed224cff2b3fad703b6ea98c4.

Bug: 38183197
Test: manual while running dumpDebugInfo continuously in the
      background
Change-Id: Ife3fb2970f58b8c8049bbe878c6a7728d1299d57
2 files changed