ast: Remove reference to unused variable

libraries/ast/stcschan.c

@@ -138,12 +138,12 @@ f     The StcsChan class does not define any new routines beyond those
 *     License as published by the Free Software Foundation, either
 *     version 3 of the License, or (at your option) any later
 *     version.
-*     
+*
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU Lesser General Public License for more details.
-*     
+*
 *     You should have received a copy of the GNU Lesser General
 *     License along with this program.  If not, see
 *     <http://www.gnu.org/licenses/>.
@@ -1649,7 +1649,6 @@ static int GetRegionProps( AstStcsChan *this, AstRegion *spreg,
                (void) sprintf( buf, fmt, scale*centre[ i ] );
                prop = astAppendString( prop, &nc, buf );
                prop = astAppendString( prop, &nc, " " );
-               p += nspace;
 
             } else {
                astAddWarning( this, 1, "The supplied PointList contains "