run(mute_output): Remove usages of the argument.

The mute_output argument behavior is the same as capture_output=True.
Prefer that argument to be able to dump the mute_output parameter.

BUG=chromium:1067680
TEST=cq

Change-Id: I770ab74198b3b35eafb263eea0f639f18e7bd832
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2139772
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>
Commit-Queue: Alex Klein <saklein@chromium.org>
diff --git a/scripts/cros_sdk.py b/scripts/cros_sdk.py
index 2837622..bb25c5f 100644
--- a/scripts/cros_sdk.py
+++ b/scripts/cros_sdk.py
@@ -247,7 +247,7 @@
 
   # ThinLTO opens lots of files at the same time.
   resource.setrlimit(resource.RLIMIT_NOFILE, (32768, 32768))
-  ret = cros_build_lib.dbg_run(cmd, check=False, mute_output=False)
+  ret = cros_build_lib.dbg_run(cmd, check=False)
   # If we were in interactive mode, ignore the exit code; it'll be whatever
   # they last ran w/in the chroot and won't matter to us one way or another.
   # Note this does allow chroot entrance to fail and be ignored during