Don't install xrootd packages separately

Dockerfile

@@ -30,15 +30,7 @@ RUN yum clean all; \
     krb5-workstation yum-plugin-priorities \
     createrepo initscripts less net-tools nmap-ncat \
     gdb git parallel compat-libf2c-34 libgfortran \
-    gcc libacl-devel perl-Test-Harness \
-    xrootd \
-    xrootd-client \
-    xrootd-client-libs \
-    xrootd-client-devel \
-    xrootd-libs \
-    xrootd-server-devel \
-    xrootd-server-libs \
-    xrootd-python
+    gcc libacl-devel perl-Test-Harness 
 
 # Install new EOS from created repo - the ADD command will reset the docker cache,
 # and any commands after that point will be uncached.