fix osmo-uninstall.sh: do not clear the entire pkgconfig

Change-Id: Iac0652c4284ee8303596772765e1a5f467a9b1ea
diff --git a/osmo-uninstall.sh b/osmo-uninstall.sh
index ebbf0de..b223c4c 100755
--- a/osmo-uninstall.sh
+++ b/osmo-uninstall.sh
@@ -8,8 +8,12 @@
 rm -rf $prefix/lib/libosmo*
 rm -rf $prefix/lib/libsccp.*
 rm -rf $prefix/lib/libsmpp34*
-rm -rf $prefix/lib/libxua.*
-rm -rf $prefix/lib/pkgconfig/
+rm -rf $prefix/lib/pkgconfig/libasn1c*
+rm -rf $prefix/lib/pkgconfig/libgtp.*
+rm -rf $prefix/lib/pkgconfig/libmtp.*
+rm -rf $prefix/lib/pkgconfig/libosmo*
+rm -rf $prefix/lib/pkgconfig/libsccp.*
+rm -rf $prefix/lib/pkgconfig/libsmpp34*
 rm -rf $prefix/include/asn1c/
 rm -rf $prefix/include/gtp.h
 rm -rf $prefix/include/gtpie.h