Bug 1384744 - Remove sccache dependencies for toolchain jobs. r=gps

None of the toolchain jobs are actually using sccache, so they don't
need the dependency. Those jobs also don't run frequently enough that
sccache would be a win for them, and when they do run, they're likely
to have few cache hits, if the cache is not expired anyways.

--HG--
extra : rebase_source : bddd0d0688303f9d9b117f4e2b952f22621bf9dd

taskcluster/ci/toolchain/linux.yml

@@ -24,7 +24,6 @@ linux64-clang:
         toolchain-artifact: public/build/clang.tar.xz
     toolchains:
         - linux64-gcc
-        - linux64-sccache
 
 linux64-clang-tidy:
     description: "Clang-tidy build"
@@ -53,7 +52,6 @@ linux64-clang-tidy:
     toolchains:
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache
 
 linux64-gcc:
     description: "GCC toolchain build"
@@ -112,7 +110,6 @@ linux64-cctools-port:
         toolchain-artifact: public/build/cctools.tar.xz
     toolchains:
         - linux64-clang
-        - linux64-sccache
 
 linux64-hfsplus:
     description: "hfsplus toolchain build"
@@ -136,7 +133,6 @@ linux64-hfsplus:
         toolchain-artifact: public/build/hfsplus-tools.tar.xz
     toolchains:
         - linux64-clang
-        - linux64-sccache
 
 linux64-libdmg:
     description: "libdmg-hfsplus toolchain build"

taskcluster/ci/toolchain/macosx.yml

@@ -27,7 +27,6 @@ macosx64-clang:
         - linux64-cctools-port
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache
 
 macosx64-clang-tidy:
     description: "Clang-tidy build"
@@ -58,7 +57,6 @@ macosx64-clang-tidy:
         - linux64-cctools-port
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache
 
 macosx64-cctools-port:
     description: "cctools-port toolchain build"
@@ -84,4 +82,3 @@ macosx64-cctools-port:
         - linux64-cctools-port
         - linux64-clang
         - linux64-gcc
-        - linux64-sccache

taskcluster/ci/toolchain/windows.yml

@@ -21,8 +21,6 @@ win32-clang-cl:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper32.sh'
         toolchain-artifact: public/build/clang.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win64-clang-cl:
     description: "Clang-cl toolchain build"
@@ -43,8 +41,6 @@ win64-clang-cl:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper64.sh'
         toolchain-artifact: public/build/clang.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win32-clang-tidy:
     description: "Clang-tidy toolchain build"
@@ -68,8 +64,6 @@ win32-clang-tidy:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper32.sh'
         toolchain-artifact: public/build/clang-tidy.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win64-clang-tidy:
     description: "Clang-tidy toolchain build"
@@ -93,8 +87,6 @@ win64-clang-tidy:
             - 'build/build-clang/**'
             - 'taskcluster/scripts/misc/build-clang-windows-helper64.sh'
         toolchain-artifact: public/build/clang-tidy.tar.bz2
-    toolchains:
-        - win64-sccache
 
 win64-sccache:
     description: "sccache toolchain build"