Removed 5 unnecessary dereferences (reported by Andriy, bug #301074).

* xmlschemas.c xmlregexp.c: Removed 5 unnecessary
  dereferences (reported by Andriy, bug #301074).
diff --git a/xmlregexp.c b/xmlregexp.c
index 495f1c5..30ffdef 100644
--- a/xmlregexp.c
+++ b/xmlregexp.c
@@ -2635,14 +2635,14 @@
 		do {
 		    if (*valStr == XML_REG_STRING_SEPARATOR)
 			break;
-		    *valStr++;
+		    valStr++;
 		} while (*valStr != 0);
 		continue;
 	    } else
 		return(0);
 	}
-	*expStr++;
-	*valStr++;
+	expStr++;
+	valStr++;
     } while (*valStr != 0);
     if (*expStr != 0)
 	return (0);