Tools: Fix lint by removing unneeded awk

git diff --name-only already took care of only returning the name, so
the awk is unneeded and makes it return only empty file names.

Facepalm, I know. Sorry for this oversight.

(Also fixes something that lint didn't catch because of this)

Source/Core/Common/Analytics.h

@@ -10,6 +10,7 @@
 #include <thread>
 #include <utility>
 #include <vector>
+
 #include <curl/curlver.h>
 
 #include "Common/CommonTypes.h"

Tools/lint.sh

@@ -5,7 +5,7 @@
 fail=0
 
 # Check for clang-format issues.
-for f in $(git diff --name-only --diff-filter=ACMRTUXB | awk '{print $2}'); do
+for f in $(git diff --name-only --diff-filter=ACMRTUXB); do
   if ! echo "${f}" | egrep -q "[.](cpp|h|mm)$"; then
     continue
   fi