Remove unused variable

We're not interested in the return value of
`gdGuessBackgroundColorFromCorners`, so there's no need to track it.

See also libgd/libgd@535eab566b4a412eef21347653fb98a48857d169.

diff --git a/ext/gd/libgd/gd_crop.c b/ext/gd/libgd/gd_crop.c
index 74d86669f5e77073cd7c9c7630812dcd3d927ae8..bdd8ba641663e0219bec72ae2e4571a9be6b1c23 100644 (file)
--- a/ext/gd/libgd/gd_crop.c
+++ b/ext/gd/libgd/gd_crop.c
@@ -81,7 +81,7 @@ gdImagePtr gdImageCropAuto(gdImagePtr im, const unsigned int mode)
        const int height = gdImageSY(im);
 
        int x,y;
-       int color, corners, match;
+       int color, match;
        gdRect crop;
 
        crop.x = 0;
@@ -103,14 +103,14 @@ gdImagePtr gdImageCropAuto(gdImagePtr im, const unsigned int mode)
                        break;
 
                case GD_CROP_SIDES:
-                       corners = gdGuessBackgroundColorFromCorners(im, &color);
+                       gdGuessBackgroundColorFromCorners(im, &color);
                        break;
 
                case GD_CROP_DEFAULT:
                default:
                        color = gdImageGetTransparent(im);
                        if (color == -1) {
-                               corners = gdGuessBackgroundColorFromCorners(im, &color);
+                               gdGuessBackgroundColorFromCorners(im, &color);
                        }
                        break;
        }