Remove remaining 'register' instruction.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 90e7e6e752)

src/SUSE2button.cpp

@@ -605,15 +605,15 @@ void SUSE2Button::renderGradient(TQPainter *painter, const TQRect &rect, const T
         int rDiff, gDiff, bDiff;
         int rc, gc, bc;
 
-        register int y;
+        int y;
 
         rDiff = ( c1.red())   - (rc = c2.red());
         gDiff = ( c1.green()) - (gc = c2.green());
         bDiff = ( c1.blue())  - (bc = c2.blue());
 
-        register int rl = rc << 16;
-        register int gl = gc << 16;
-        register int bl = bc << 16;
+        int rl = rc << 16;
+        int gl = gc << 16;
+        int bl = bc << 16;
 
         int rdelta = ((1<<16) / r_h) * rDiff;
         int gdelta = ((1<<16) / r_h) * gDiff;