SnapdragonCamera: Fix improper call to disable HFR

- Remove the filter for unsupported HFR modes in camcorder
  (may re-introduce CR#510215)
- Fix improperly hardcoded setting of HFR mode to "disable"
  instead of "off"
- Revert code where string prefixes were added to HFR camera
  parameter

This reverts commit 1ad1d65a88e350e6e5461828ab930638b778564d.
This reverts commit 9804a5e9116c8e17ac11449fcd83f2e0af5d4f38.

CRs-Fixed: 687765
Change-Id: I85eecca7f2fc9bd83e90e0610ab66f1102dedc02
2 files changed