Remove +absl/flags exceptions from non root DEPS files.

It is already present in the root DEPS file.

TBR=magjed@webrtc.org

Bug: webrtc:10616
Change-Id: Iefca6982450a23e356786c503d4bd208718a3804
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/145200
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Oleh Prypin <oprypin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28580}
diff --git a/examples/DEPS b/examples/DEPS
index 1604a6a..114cda3 100644
--- a/examples/DEPS
+++ b/examples/DEPS
@@ -10,7 +10,4 @@
   "+sdk/objc",
   "+system_wrappers/include",
   "+third_party/libyuv",
-
-  # Abseil flags are allowed in tests and tools.
-  "+absl/flags",
 ]
diff --git a/rtc_tools/DEPS b/rtc_tools/DEPS
index c5eb175..0cddb4a 100644
--- a/rtc_tools/DEPS
+++ b/rtc_tools/DEPS
@@ -17,8 +17,5 @@
   "+system_wrappers",
   "+p2p",
   "+third_party/libyuv",
-
-  # Abseil flags are allowed in tests and tools.
-  "+absl/flags",
 ]