Bug 1384744 - Remove mozmake and rustc from the build-clang-cl tooltool manifest. r=gps

The manifest is only used for windows clang-cl toolchain jobs, and
building clang-cl doesn't use make or rustc.

--HG--
extra : rebase_source : 2209098306461cac9c2145d8d9a0f2ea096b1f08

browser/config/tooltool-manifests/win32/build-clang-cl.manifest

@@ -1,18 +1,4 @@
 [
-  {
-    "size": 266240,
-    "digest": "bb345b0e700ffab4d09436981f14b5de84da55a3f18a7f09ebc4364a4488acdeab8d46f447b12ac70f2da1444a68b8ce8b8675f0dae2ccf845e966d1df0f0869",
-    "algorithm": "sha512",
-    "filename": "mozmake.exe"
-  },
-  {
-    "version": "rustc 1.19.0 (0ade33941 2017-07-17) repack",
-    "size": 97017057,
-    "digest": "b726645f9d26c5a3048720b3839166021c1cf91a02d2ff2f10c49adced7455c7352e18b5052084d80bf9d1c40ec1bf72d0397921b8cd23262f89fdbd10def58f",
-    "algorithm": "sha512",
-    "filename": "rustc.tar.bz2",
-    "unpack": true
-  },
   {
     "version": "Visual Studio 2015 Update 3 14.0.25425.01 / SDK 10.0.14393.0",
     "size": 326656969,

taskcluster/docker/rust-build/splat_rust.py

@@ -88,7 +88,6 @@ TARGETS = {
             'browser/config/tooltool-manifests/win64/releng.manifest',
             ],
         'i686-pc-windows-msvc-repack': [
-            'browser/config/tooltool-manifests/win32/build-clang-cl.manifest',
             'browser/config/tooltool-manifests/win32/clang.manifest',
             'browser/config/tooltool-manifests/win32/releng.manifest',
             ],