Cleaning checkdeps configuration.

After moving WebRTC from src/webrtc to src/ we can remove -webrtc from
the checkdeps configuration.

In this CL I also remove "+voice_engine_configurations.h" because this
header does not exist anymore.

NOTRY= True

Bug: chromium:611808
Change-Id: I4de427c51d78707f8107dd2dd1f834362d1c4da2
Reviewed-on: https://webrtc-review.googlesource.com/1845
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19888}
diff --git a/DEPS b/DEPS
index 1e0ca42..1fba17f 100644
--- a/DEPS
+++ b/DEPS
@@ -552,13 +552,11 @@
   "+external/webrtc/webrtc",  # Android platform build.
   "+gflags",
   "+libyuv",
-  "-webrtc",  # Has to be disabled; otherwise all dirs below will be allowed.
   # Individual headers that will be moved out of here, see webrtc:4243.
   "+call/rtp_config.h",
   "+common_types.h",
   "+transport.h",
   "+typedefs.h",
-  "+voice_engine_configurations.h",
 
   "+WebRTC",
   "+api",