Utilities/Scripts: Remove temporary CMAKE_BOOTSTRAP conversion script

Utilities/Scripts/cmake-bootstrap-def.sh

@@ -1,7 +0,0 @@
-#!/bin/sh
-
-sed -i -e 's/!defined(CMAKE_BUILD_WITH_CMAKE)/defined(CMAKE_BOOTSTRAP)/g' \
-  -e 's/defined(CMAKE_BUILD_WITH_CMAKE)/!defined(CMAKE_BOOTSTRAP)/g' \
-  -e 's/ifndef CMAKE_BUILD_WITH_CMAKE/ifdef CMAKE_BOOTSTRAP/g' \
-  -e 's/ifdef CMAKE_BUILD_WITH_CMAKE/ifndef CMAKE_BOOTSTRAP/g' \
-  $(git ls-files Source)