Revert of Add check_build_deps step to gclient runhooks

Revert of Add check_build_deps step to gclient runhooks (patchset #2 id:20001 of https://codereview.chromium.org/2505413003/ )

Reason for revert:
Breaking builds on Cast Android (dbg), Android Cronet x86 Builder (dbg), etc.:

Missing build dependencies. Try running 'build/install-build-deps.sh'

Original issue's description:
> Add check_build_deps step to gclient runhooks
> 
> This CL adds a build hook to ensure that any necessary build
> dependencies are installed before proceeding with the
> build.  A failure would indicate install_build_deps.sh
> needs to be rerun.
> 
> BUG=666937
> R=dpranke@chromium.org
> 
> Committed: https://crrev.com/e8942c0a68a986313e2927de584a644c8d21b230
> Cr-Commit-Position: refs/heads/master@{#433603}

TBR=dpranke@chromium.org,thomasanderson@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=666937

[mdjones, 2016-11-21 19:45:12]

The CQ bit was checked by mdjones@chromium.org

[mdjones, 2016-11-21 19:45:12]

Created Revert of Add check_build_deps step to gclient runhooks

[commit-bot: I haz the power, 2016-11-21 19:46:24]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-11-21 19:48:08]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-11-21 19:48:10]

Failed to apply patch for DEPS:
While running git apply --index -p1;
  error: patch failed: DEPS:537
  error: DEPS: patch does not apply

Patch:       DEPS
Index: DEPS
diff --git a/DEPS b/DEPS
index
10ff84d31364bc65f0d29673b338eaaa6406213e..d3f060c643381849d1dbbc900837e7423d71c23d
100644
--- a/DEPS
+++ b/DEPS
@@ -537,16 +537,6 @@
     ],
   },
   {
-    # Ensure the host environment has the necessary packages required to build
-	# Chromium.
-	'name': 'check_build_deps',
-	'pattern': '.',
-	'action': [
-        'python',
-        'src/build/check-build-deps.py',
-    ],
-  },
-  {
     # Ensure that while generating dependencies lists in .gyp files we don't
     # accidentally reference any .pyc files whose corresponding .py files have
     # already been deleted.