Win32 - installer.sh - minor pkg_config tweak

[hfelton-lists]

this is totally minor, but it annoyed me and looks to be
harmless in the overall scheme...  (related to the profile.d
issue because i kept getting update msgs for it)

have fun, h.

Index: install.sh
===================================================================
--- install.sh	(revision 15239)
+++ install.sh	(working copy)
@@ -21,7 +21,6 @@
 SEPS_INTLTOOL_PERL=" "
 SEPS_PATH=":"
 SEPS_PKG_CONFIG=":"
-PKG_CONFIG=""
 SEPS_PKG_CONFIG_PATH=":"
 SEPS_READLINE_CPPFLAGS=" "
 SEPS_READLINE_LDFLAGS=" "