disable release3 build for now

Jenkinsfile

@@ -170,7 +170,7 @@ pipeline {
                       ["test loggerd", "python selfdrive/loggerd/tests/test_loggerd.py"],
                       ["test encoder", "LD_LIBRARY_PATH=/usr/local/lib python selfdrive/loggerd/tests/test_encoder.py"],
                       ["test camerad", "python selfdrive/camerad/test/test_camerad.py"],
-                      ["build release3-staging", "cd release && PUSH=${env.R3_PUSH} ./build_release3.sh"],
+                      //["build release3-staging", "cd release && PUSH=${env.R3_PUSH} ./build_release3.sh"],
                     ])
                   }
                 }