glx: Drop debug fprintf that snug in with the previous commit
diff --git a/src/glx/glxcmds.c b/src/glx/glxcmds.c
index cc1197b..0782b1d 100644
--- a/src/glx/glxcmds.c
+++ b/src/glx/glxcmds.c
@@ -2575,8 +2575,6 @@
    INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr;
    CARD8 opcode;
 
-   fprintf(stderr, "copy sub: %d,%d %dx%d\n", x, y , width, height);
-
 #if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
    __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
    if (pdraw != NULL) {