Mostly remove unused imports

Change-Id: If8ceffdfad79b78194094527759f5c334746973e

Clicking the "include recording" checkbox in the user feedback dialog did nothing.
The code was relying on the state of the checkbox, rather than keeping its own state.
Fixing this addresses the bug.

Change-Id: I559d57a4e11f869f6e6f5e5de7878f765531a203

Change-Id: I6c3252f3b31c5874ea2f909f636f58b579c06b8d

The feedback string is used as a channel name in internal builds.  Add a flag
that lets it be saved between calls to make it easier to generate test data.

Change-Id: I5c6149b1e68239cd968b6852d03cc240ddde99ca

Change-Id: I30f7c07606e466c3c9538adad94024d00f0901de

- Also, internal flag for automatically replaying after a recording is made (off by default)
- RLog key to "Bug?"

multi-project commit with I0c2fababd73eed5a341af487bca04ddd650d4cc2

Change-Id: I162c96a715de7180f276e08b4686a20f29dabafb

multi-project commit with I0a293f392bd605c8203dc9a62993345ad58dcfbe

Change-Id: Ief5b940a62dbaeaecdf1c55f2ffdd1e0fdaea2b9

Change-Id: Ic56167f952a7f4449da366e1e81610e72c966086

- also cleaned up RLog menu

multi-project commit with If0fd4fef89d390073e6939d5188ed5696866cb33

Bug: 6188932
Change-Id: I4f66f13bd366b4e8bde742ccd0704f812c6d33f9