dinput: Remove explicit cast to long as it happens implicitly.

LPDIEFFECT->rglDirection is a LPLONG.
diff --git a/dlls/dinput/effect_linuxinput.c b/dlls/dinput/effect_linuxinput.c
index 3c86a34..7802271 100644
--- a/dlls/dinput/effect_linuxinput.c
+++ b/dlls/dinput/effect_linuxinput.c
@@ -342,8 +342,8 @@
             return diErr;
         else {
 	    if (peff->dwFlags & DIEFF_CARTESIAN) {
-		peff->rglDirection[0] = (long)(sin(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000);
-		peff->rglDirection[1] = (long)(cos(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000);
+		peff->rglDirection[0] = sin(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000;
+		peff->rglDirection[1] = cos(M_PI * 3 * This->effect.direction / 0x7FFF) * 1000;
 	    } else {
 		/* Polar and spherical coordinates are the same for two or less
 		 * axes.