Fixed compiler warnings about unreferenced formal parameters when

FT_CONFIG_OPTION_INCREMENTAL is not defined.

src/cff/cffgload.c

@@ -595,6 +595,10 @@
                        FT_Byte**  pointer,
                        FT_ULong   length )
   {
+#ifndef FT_CONFIG_OPTION_INCREMENTAL
+    length; /* Prevent compiler warning about unreferenced parameter. */
+#endif
+
 #ifdef FT_CONFIG_OPTION_INCREMENTAL
     /* For incremental fonts get the character data using the */
     /* callback function.                                     */

src/cff/cffload.c

@@ -2049,6 +2049,10 @@
     CFF_FontRecDict  dict;
 
 
+#ifndef FT_CONFIG_OPTION_INCREMENTAL
+    face; /* Prevent compiler warning about unreferenced parameter. */
+#endif
+
     FT_ZERO( font );
 
     font->stream = stream;