Fixes sensors AIDL default impl APEX's binary name.

commit bde01c60
moved this APEX from the HIDL to AIDL impl, but accidentally
left out the rename of the binary in the file_contexts

Also deletes unused .rc file here; the APEX already reuses the
.rc file from outside the APEX dir.

Bug: 222579208
Test: Build cf_x86_64_phone using sensors APEX: http://ab/P33964358
      Boot the device, use accel sensor to rotate the screen.
Change-Id: Ib107770312bb80b67364c855efd2df3a9bc52b9a