Clean up unneeded includes in common_audio/BUILD.gn.

WebRTC internal headers are always included starting from the root
(e.g. #include "common_audio/..."), so there is no need to
specify the include_dirs removed by this CL.

Bug: webrtc:9538
Change-Id: Id2c070dad48c88dece3fea59e9dd0e64695ee298
Reviewed-on: https://webrtc-review.googlesource.com/89390
Reviewed-by: Oleh Prypin <oprypin@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24035}
diff --git a/common_audio/BUILD.gn b/common_audio/BUILD.gn
index 57cf699..465bf9c 100644
--- a/common_audio/BUILD.gn
+++ b/common_audio/BUILD.gn
@@ -10,14 +10,6 @@
 
 visibility = [ ":*" ]
 
-config("common_audio_config") {
-  include_dirs = [
-    "resampler/include",
-    "signal_processing/include",
-    "vad/include",
-  ]
-}
-
 rtc_static_library("common_audio") {
   visibility += [ "*" ]
   sources = [
@@ -80,8 +72,6 @@
     deps += [ ":common_audio_neon" ]
   }
 
-  public_configs = [ ":common_audio_config" ]
-
   if (current_cpu == "x86" || current_cpu == "x64") {
     deps += [ ":common_audio_sse2" ]
   }
@@ -197,7 +187,6 @@
     ]
   }
 
-  public_configs = [ ":common_audio_config" ]
   deps = [
     ":common_audio_c_arm_asm",
     ":common_audio_cc",
@@ -227,7 +216,6 @@
     "signal_processing/dot_product_with_scale.h",
   ]
 
-  public_configs = [ ":common_audio_config" ]
   deps = [
     "..:webrtc_common",
     "../:typedefs",