Cleanup BUILD.gn files from imports like foo:foo

Repalce all occurrences of foo:foo in deps with just foo in BUILD.gn
files.

Done with Sublime regex replace.
Find: \b([-a-zA-Z0-9_]+):+\1\b
In: *.gn
Replace with: \1

Bug: None
Change-Id: I40aba1b14face687a595b852ffe443cb20197611
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/127899
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Artem Titov <titovartem@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27225}
diff --git a/audio/BUILD.gn b/audio/BUILD.gn
index fc42002..ce6525e 100644
--- a/audio/BUILD.gn
+++ b/audio/BUILD.gn
@@ -63,16 +63,16 @@
     "../modules/audio_device",
     "../modules/audio_processing",
     "../modules/audio_processing:api",
-    "../modules/bitrate_controller:bitrate_controller",
-    "../modules/pacing:pacing",
-    "../modules/remote_bitrate_estimator:remote_bitrate_estimator",
+    "../modules/bitrate_controller",
+    "../modules/pacing",
+    "../modules/remote_bitrate_estimator",
     "../modules/rtp_rtcp",
     "../modules/rtp_rtcp:rtp_rtcp_format",
     "../modules/utility",
+    "../rtc_base",
     "../rtc_base:audio_format_to_string",
     "../rtc_base:checks",
     "../rtc_base:rate_limiter",
-    "../rtc_base:rtc_base",
     "../rtc_base:rtc_base_approved",
     "../rtc_base:rtc_task_queue",
     "../rtc_base:safe_minmax",
@@ -98,7 +98,7 @@
       "../api:simulated_network_api",
       "../call:fake_network",
       "../call:simulated_network",
-      "../system_wrappers:system_wrappers",
+      "../system_wrappers",
       "../test:test_common",
       "../test:test_support",
       "//third_party/abseil-cpp/absl/memory",
@@ -150,7 +150,7 @@
       "../modules/audio_mixer:audio_mixer_impl",
       "../modules/audio_processing:audio_processing_statistics",
       "../modules/audio_processing:mocks",
-      "../modules/pacing:pacing",
+      "../modules/pacing",
       "../modules/rtp_rtcp:mock_rtp_rtcp",
       "../modules/rtp_rtcp:rtp_rtcp_format",
       "../modules/utility",
@@ -159,7 +159,7 @@
       "../rtc_base:rtc_task_queue",
       "../rtc_base:safe_compare",
       "../rtc_base:timeutils",
-      "../system_wrappers:system_wrappers",
+      "../system_wrappers",
       "../test:audio_codec_mocks",
       "../test:rtp_test_utils",
       "../test:test_common",