Rip out the remainder of Bluebird

src/rageshake/rageshake.js

@@ -16,8 +16,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import Promise from 'bluebird';
-
 // This module contains all the code needed to log the console, persist it to
 // disk and submit bug reports. Rationale is as follows:
 //  - Monkey-patching the console is preferable to having a log library because

src/rageshake/submit-rageshake.js

@@ -17,7 +17,6 @@ limitations under the License.
 */
 
 import pako from 'pako';
-import Promise from 'bluebird';
 
 import MatrixClientPeg from '../MatrixClientPeg';
 import PlatformPeg from '../PlatformPeg';