Revert "use Cray fork of libfabric"

This reverts commit 7eb816a2.
- necessary fix has been upstreamed

tests/perf-regression/theta/run-regression.sh

@@ -28,7 +28,7 @@ mkdir $JOBDIR
 cp margo-p2p-latency.qsub $JOBDIR
 
 cd $SANDBOX
-git clone https://github.com/ofi-cray/libfabric-cray.git
+git clone https://github.com/ofiwg/libfabric.git
 git clone https://github.com/pmodels/argobots.git
 git clone https://github.com/mercury-hpc/mercury.git
 wget http://dist.schmorp.de/libev/libev-4.24.tar.gz
@@ -49,11 +49,11 @@ make install
  
 # libfabric
 echo "=== BUILDING LIBFABRIC ==="
-cd $SANDBOX/libfabric-cray
+cd $SANDBOX/libfabric
 ./autogen.sh
 mkdir build
 cd build
-../configure --prefix=$PREFIX --enable-gni --disable-rxd --disable-rxm --disable-udp --disable-usnic --disable-verbs --disable-sockets --host=x86_64-linux --enable-ugni-static
+../configure --prefix=$PREFIX --enable-gni --disable-rxd --disable-rxm --disable-udp --disable-usnic --disable-verbs --disable-sockets --host=x86_64-linux 
 make -j 3
 make install
 
@@ -121,5 +121,6 @@ dos2unix combined.$JOBID.txt
 mailx -s "margo-p2p-latency (theta, ofi/gni)" sds-commits@lists.mcs.anl.gov < combined.$JOBID.txt
 
 cd /tmp
-rm -rf $SANDBOX
-rm -rf $PREFIX
+# TODO: temporary while debugging
+#rm -rf $SANDBOX
+#rm -rf $PREFIX