tools: Remove fix_code_style.sh

No one is using it.
Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

tools/fix_code_style.sh

-#!/bin/sh
-astyle \
-    --style=allman		\
-    --indent=spaces=4	\
-    --indent-cases		\
-    --indent-preprocessor	\
-    --break-blocks=all		\
-    --pad-oper			\
-    --pad-header		\
-    --unpad-paren		\
-    --keep-one-line-blocks	\
-    --keep-one-line-statements	\
-    --align-pointer=name	\
-    --align-reference=name	\
-    --suffix=none		\
-    --ignore-exclude-errors-x	\
-    --lineend=linux		\
-    --exclude=EASTL		\
-    $*