Remove All USE_COLOR_PIPELINE References from //BUILD.gn and //ui Except for Flag Declarations

The flag declarations are still used by dependent directories.

BUG=1057239
[email protected]
Unit test deps change due to flag removal.

Change-Id: If5404c1855ee1b284c37b773b3fb835e6c8ee8c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2080867
Commit-Queue: Robert Liao <[email protected]>
Reviewed-by: Peter Kasting <[email protected]>
Cr-Commit-Position: refs/heads/master@{#746902}
diff --git a/BUILD.gn b/BUILD.gn
index d2c9c44..670ea64 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -85,6 +85,7 @@
     "//tools/ipc_fuzzer:ipc_fuzzer_all",
     "//tools/metrics:metrics_metadata",
     "//ui/base:ui_base_unittests",
+    "//ui/color:color_unittests",
     "//ui/gfx:gfx_unittests",
     "//url:url_unittests",
   ]
@@ -829,10 +830,6 @@
     ]
   }
 
-  if (use_color_pipeline) {
-    deps += [ "//ui/color:color_unittests" ]
-  }
-
   # PFFFT.
   deps += [
     "//third_party/pffft:fuzzers",