CleanSpec: Remove stale configstore@1.1-service.rc

Removing this file was inadvertently left out of commit 2b3f8267.

Bug: 113292034
Test: build+flash from tree before 2b3f8267, sync past 2b3f8267,
      apply this change, build+flash again

Change-Id: Ic12e57e2426d2e105e6b846fa8ca076c6100c2ba