remove unused 'PLATFORMSDKINCLUDE_ESCAPED' build system variable

This was using syntax incompatible with POSIX /bin/sh. But the last use of this
was removed in bd879b4583b32e4d13e4b36bea0c20f530fbca0c, so lets just remove it.

Gitlab: #2317

diff --git a/configure.ac b/configure.ac
index 4cbf008274c123f5fb1a67d1f55971585ffe37e7..91919b068ac590cf2cb6933458a4bc7349267d98 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2059,14 +2059,13 @@ dnl INCLUDES and LIBS for PLATFORMSDK
 
 AC_ARG_WITH(platformsdkincludedir,
   [AS_HELP_STRING([--with-platformsdkincludedir=DIR],[use Platform SDK (Windows) includes from DIR])],
-  [PLATFORMSDKINCLUDE=$withval; PLATFORMSDKINCLUDE_ESCAPED=${PLATFORMSDKINCLUDE//'\\'/\\\\}; PLATFORMSDKINCLUDE_ESCAPED=${PLATFORMSDKINCLUDE_ESCAPED// /\\ }])
+  [PLATFORMSDKINCLUDE=$withval])
 
 AC_ARG_WITH(platformsdklibdir,
   [AS_HELP_STRING([--with-platformsdklibdir=DIR],[use Platform SDK (Windows) libraries from DIR])],
   [PLATFORMSDKLIB=$withval])
 
 AC_SUBST([PLATFORMSDKINCLUDE])
-AC_SUBST([PLATFORMSDKINCLUDE_ESCAPED])
 AC_SUBST([PLATFORMSDKLIB])
 
 dnl -----------------------------------