Fix repeated calls into reportExtractedText

As part of adding the hint text feature in
I357dd5c74b61d149cf8612d1f52c7118ec70c696  I refactored
the code inside reportExtractedText to avoid nesting but lost one
of the condition checks in the process. Since onDraw calls into
this method on each frame, the missing check was causing calls to be
made into the IME even when no content or selection changes have
happened.

Test: CtsWidgetTestCases:.TextViewTest
Bug: 73613936
Change-Id: If56e3f1d45e64dccd052e4cff4d742f0cbecc07c