mca/base: remove erroneous check in var group register function

This commit removes a check that causes mca_base_group_register to
improperly create a new group instead of using an existing group
when the project and framework names are the same. This check was
originally intended to prevent forming groups with names like
ompi_ompi, opal_opal, etc but there is no reason why we shouldn't
allow that.

Fixes open-mpi/ompi#1155

Signed-off-by: Nathan Hjelm <hjelmn@me.com>

opal/mca/base/mca_base_var_group.c

@@ -274,12 +274,6 @@ static int group_register (const char *project_name, const char *framework_name,
         }
     }
 
-    /* avoid groups of the form opal_opal, ompi_ompi, etc */
-    if (NULL != project_name && NULL != framework_name &&
-        (0 == strcmp (project_name, framework_name))) {
-        project_name = NULL;
-    }
-
     /* build the group name */
     ret = mca_base_var_generate_full_name4 (NULL, project_name, framework_name, component_name,
                                             &group->group_full_name);