Revert "Make format torque tools work on win"

This reverts commit 1fdf6405.

Reason for revert: Alters behavior on linux; we need to investigate

Original change's description:
> Make format torque tools work on win
> 
> Reformatting Torque file is required to upload a CL
> but it can only work on POSIX
> 
> Change-Id: I51283e3f6b29abf492be7efb5b8f10454d09fb37
> Reviewed-on: https://chromium-review.googlesource.com/c/1475919
> Reviewed-by: Michael Stanton <mvstanton@chromium.org>
> Commit-Queue: Michael Stanton <mvstanton@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#59719}

TBR=mvstanton@chromium.org,bmsdave@gmail.com,duongn@microsoft.com

Change-Id: I8845fa1d1ddf5ce841a84ef59c9572673e4a2510
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/1478199Reviewed-by: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#59736}

tools/torque/format-torque.py

@@ -95,7 +95,7 @@ def process(filename, lint, should_format):
 
   original_input = content
 
-  p = Popen(['clang-format', '-assume-filename=.ts'], stdin=PIPE, stdout=PIPE, stderr=PIPE, shell=True)
+  p = Popen(['clang-format', '-assume-filename=.ts'], stdin=PIPE, stdout=PIPE, stderr=PIPE)
   output, err = p.communicate(preprocess(content))
   output = postprocess(output)
   rc = p.returncode