winegcc_wrapper: Remove misleading usage hint

winegcc_wrapper.in is only intended to be used within FindWine.cmake. Also
moved it to the same directory for this reason.

cmake/modules/FindWine.cmake

@@ -58,5 +58,5 @@ IF(WINE_32_LIBRARY_DIR)
 ENDIF()
 
 # Create winegcc wrapper
-configure_file(${CMAKE_CURRENT_LIST_DIR}/../linux/winegcc_wrapper.in winegcc_wrapper @ONLY)
+configure_file(${CMAKE_CURRENT_LIST_DIR}/winegcc_wrapper.in winegcc_wrapper @ONLY)
 SET(WINEGCC "${CMAKE_CURRENT_BINARY_DIR}/winegcc_wrapper")

cmake/modules/winegcc_wrapper.in

@@ -1,7 +1,7 @@
 #!/bin/sh
 # Wrapper script for winegcc to remove .exe file ending automatically
 # appended by winebuild.
-# Usage: winegcc <args ...>
+# See FindWine.cmake for usage
 
 set -e