Removed unused mu variable

src/nanovg.c

@@ -1291,7 +1291,7 @@ static struct NVGvertex* nvg__bevelJoin(struct NVGvertex* dst, struct NVGpoint*
 {
 	float rx0,ry0,rx1,ry1;
 	float lx0,ly0,lx1,ly1;
-	float mx,my,len,mu;
+	float mx,my,len;
 	float dlx0 = p0->dy;
 	float dly0 = -p0->dx;
 	float dlx1 = p1->dy;
@@ -1309,7 +1309,6 @@ static struct NVGvertex* nvg__bevelJoin(struct NVGvertex* dst, struct NVGpoint*
 			mx = (dlx0 + dlx1) * 0.5f;
 			my = (dly0 + dly1) * 0.5f;
 			len = sqrtf(mx*mx + my*my);
-			mu = ru + len*(lu-ru)*0.5f;
 
 			nvg__vset(dst, lx0, ly0, lu,1); dst++;
 			nvg__vset(dst, p1->x - dlx0*rw, p1->y - dly0*rw, ru,1); dst++;
@@ -1344,7 +1343,6 @@ static struct NVGvertex* nvg__bevelJoin(struct NVGvertex* dst, struct NVGpoint*
 			mx = (dlx0 + dlx1) * 0.5f;
 			my = (dly0 + dly1) * 0.5f;
 			len = sqrtf(mx*mx + my*my);
-			mu = lu + len*(ru-lu)*0.5f;
 
 			nvg__vset(dst, p1->x + dlx0*lw, p1->y + dly0*lw, lu,1); dst++;
 			nvg__vset(dst, rx0, ry0, ru,1); dst++;