Removed vsync offset check from display info equality

We recently added a mechanism for emitting refresh rate events when framerate is overridden. However, when framerate overridding happens, appVsyncOffsetNanos is also changed which is used to validate the displayInfo equality. This led to emission of both display changed and refresh rate changed events. https://android-build.corp.google.com/abtd/run/L57400030009232963/ was used to validate the metrics fix with the suggested changes

Bug: 387962667
Test: Manual testing
Flag: EXEMPT trivial change
Change-Id: I114a9958831f12cbf2492e6ebf3fc7302b7ae1e5