remove early shutdown from tiff reader

since streams do this automatically now

libvips/conversion/sequential.c

@@ -195,7 +195,7 @@ vips_sequential_build( VipsObject *object )
 	if( vips_linecache( sequential->in, &t, 
 		"tile_height", sequential->tile_height,
 		"access", VIPS_ACCESS_SEQUENTIAL,
-		/* We need seq caches to persist across minimise, in case
+		/* We need seq caches to persist across minimise in case
 		 * someone is trying to read an image with a series of crop
 		 * operations.
 		 */

libvips/foreign/tiff2vips.c

@@ -2041,15 +2041,6 @@ rtiff_stripwise_generate( VipsRegion *or,
 		rtiff->y_pos += hit.height;
 	}
 
-	/* Shut down the input file as soon as we can.
-	 */
-	if( rtiff->y_pos >= or->im->Ysize ) {
-#ifdef DEBUG
-		printf( "rtiff_stripwise_generate: early shutdown\n" );
-#endif /*DEBUG*/
-		rtiff_free( rtiff );
-	}
-
 	VIPS_GATE_STOP( "rtiff_stripwise_generate: work" ); 
 
 	return( 0 );

libvips/foreign/vips2tiff.c

@@ -1241,7 +1241,6 @@ LabS2Lab16( VipsPel *q, VipsPel *p, int n, int samples_per_pixel )
 	int x;
 
         for( x = 0; x < n; x++ ) {
-		int v;
 		int i;
 
                 /* LABS L can be negative.