--- a/media/gmp-clearkey/0.1/ClearKeySessionManager.cpp
+++ b/media/gmp-clearkey/0.1/ClearKeySessionManager.cpp
@@ -227,17 +227,17 @@ ClearKeySessionManager::LoadSession(uint
     [self, sessionId, aPromiseId] (const uint8_t* data, uint32_t size)
   {
     self->PersistentSessionDataLoaded(aPromiseId,
                                       sessionId,
                                       data,
                                       size);
   };
 
-  function<void()> failure = [self, sessionId, aPromiseId] {
+  function<void()> failure = [self, aPromiseId] {
     if (!self->mHost) {
       return;
     }
     // As per the API described in ContentDecryptionModule_8
     self->mHost->OnResolveNewSessionPromise(aPromiseId, nullptr, 0);
   };
 
   ReadData(mHost, sessionId, move(success), move(failure));
@@ -581,25 +581,25 @@ ClearKeySessionManager::RemoveSession(ui
     mHost->OnResolvePromise(aPromiseId);
     return;
   }
 
   mPersistence->PersistentSessionRemoved(sid);
 
   vector<uint8_t> emptyKeydata;
 
-  function<void()> resolve = [self, aPromiseId, sessionId] ()
+  function<void()> resolve = [self, aPromiseId] ()
   {
     if (!self->mHost) {
       return;
     }
     self->mHost->OnResolvePromise(aPromiseId);
   };
 
-  function<void()> reject = [self, aPromiseId, sessionId] ()
+  function<void()> reject = [self, aPromiseId] ()
   {
     if (!self->mHost) {
       return;
     }
     static const char* message = "Could not remove session";
     self->mHost->OnRejectPromise(aPromiseId,
                                  Error::kInvalidAccessError,
                                  0,