utils: run: remove redundant redirect settings

capture_output=True implies both redirect_std{out,err}=True so we
can delete the latter settings when the former is active.

Change-Id: I2ad9383b3c0ea244b8984577ca4196f5980c76a7
Bug: None
Test: unittests pass
diff --git a/pre-upload.py b/pre-upload.py
index 467e6c8..d7c12aa 100755
--- a/pre-upload.py
+++ b/pre-upload.py
@@ -419,8 +419,7 @@
       a blank string upon failure.
     """
     cmd = ['repo', 'forall', '.', '-c', 'echo ${REPO_PROJECT}']
-    return rh.utils.run(cmd, capture_output=True, redirect_stderr=True,
-                        cwd=path).stdout.strip()
+    return rh.utils.run(cmd, capture_output=True, cwd=path).stdout.strip()
 
 
 def direct_main(argv):
@@ -452,8 +451,7 @@
     # project from CWD.
     if opts.dir is None:
         cmd = ['git', 'rev-parse', '--git-dir']
-        git_dir = rh.utils.run(cmd, capture_output=True,
-                               redirect_stderr=True).stdout.strip()
+        git_dir = rh.utils.run(cmd, capture_output=True).stdout.strip()
         if not git_dir:
             parser.error('The current directory is not part of a git project.')
         opts.dir = os.path.dirname(os.path.abspath(git_dir))