Remove the rpath added by libtool as-per fedora guidelines

--- torque-2.1.0p0-snap.200604071240/configure	2006-04-07 15:41:06.000000000 -0400
+++ ./configure	2006-04-08 15:53:16.000000000 -0400
@@ -5935,7 +5935,8 @@
 
   if test "$ld_shlibs" = yes; then
     runpath_var=LD_RUN_PATH
-    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
+    # hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
+    hardcode_libdir_flag_spec=''
     export_dynamic_flag_spec='${wl}--export-dynamic'
     case $host_os in
     cygwin* | mingw* | pw32*)