Bug 1509992 - turn off Windows Jit job, r=jmaher

--HG--
extra : rebase_source : ef9b9f37b758d09d1b0534fe45787cc4f589ca5f

taskcluster/ci/test/compiled.yml

@@ -63,6 +63,7 @@ jittest:
         by-test-platform:
             android-hw.*: ['try']
             linux.*: []  # redundant with SM(...)
+            windows.*: []  # redundant with SM(p)
             default: built-projects
     chunks:
         by-test-platform: