DecryptHandle: remove unused operators

Nothing was using these, so remove them.

Test: build, atest cts/tests/tests/drm/src/android/drm/cts/DRMTest.java

Change-Id: I4545951f6d6faa21ef35732306302a52b7d941d8
diff --git a/include/drm/drm_framework_common.h b/include/drm/drm_framework_common.h
index d75f71c..d5f3ba2 100644
--- a/include/drm/drm_framework_common.h
+++ b/include/drm/drm_framework_common.h
@@ -317,14 +317,6 @@
     ~DecryptHandle() {
         delete decryptInfo; decryptInfo = NULL;
     }
-
-    bool operator<(const DecryptHandle& handle) const {
-        return (decryptId < handle.decryptId);
-    }
-
-    bool operator==(const DecryptHandle& handle) const {
-        return (decryptId == handle.decryptId);
-    }
 };
 
 };