pkgconfig: Drop glibconfig from SRC_URI to unbreak builds after previous commit

(From OE-Core rev: 53ac749f02e112061f4d2506f2bc26a73e89a345)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/pkgconfig/pkgconfig_0.28.bb

@@ -1,7 +1,6 @@
 require pkgconfig.inc
 
 SRC_URI += " \
-            file://glibconfig-sysdefs.h \
             file://pkg-config-native.in \
             file://fix-glib-configure-libtool-usage.patch \
             file://obsolete_automake_macros.patch \

meta/recipes-devtools/pkgconfig/pkgconfig_git.bb

@@ -1,8 +1,7 @@
 require pkgconfig.inc
 
 SRC_URI = "git://anongit.freedesktop.org/pkg-config \
-           file://autofoo.patch \
-           file://glibconfig-sysdefs.h"
+           file://autofoo.patch"
 
 S = "${WORKDIR}/git/"