Remove a hack for 1.0/1.1 bitmap compatibility.

Instead, implement it correctly.
This hack was a quick jury-rigging before O MR1 FC.

Bug: b/36864090
Test: VTS
Change-Id: Ia9caff9228518ec573a85437e9070db777057359
diff --git a/broadcastradio/1.1/default/Tuner.h b/broadcastradio/1.1/default/Tuner.h
index c785586..af19ec0 100644
--- a/broadcastradio/1.1/default/Tuner.h
+++ b/broadcastradio/1.1/default/Tuner.h
@@ -67,6 +67,7 @@
     ProgramInfo mCurrentProgramInfo = {};
     std::atomic<bool> mIsAnalogForced;
 
+    utils::HalRevision getHalRev() const;
     void tuneInternalLocked(const ProgramSelector& sel);
     bool isFmLocked();  // TODO(b/36864090): make it generic, not FM only
 };