Remove broadcastradio HAL 1.2 support from the framework.

Bug: 62945293
Test: VTS
Change-Id: Ifd54fe476717ae71e5c9ff72498bf702b0c29454
diff --git a/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h b/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h
index 8ad7109..d47746d 100644
--- a/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h
+++ b/broadcastradio/common/utils1x/include/broadcastradio-utils-1x/Utils.h
@@ -29,7 +29,6 @@
 enum class HalRevision : uint32_t {
     V1_0 = 1,
     V1_1,
-    V1_2,  // TODO(b/62945293): remove
 };
 
 /**