Update conv2d_dw_output_tile.glsl

Author: trivedivivek

backends/vulkan/runtime/graph/ops/glsl/conv2d_dw_output_tile.glsl

@@ -124,42 +124,3 @@ void main() {
     }
   }
 }
-
-#else
-void main() {
-  const uint div_by_x = gl_GlobalInvocationID.x / out_limits.x;
-  const ivec3 pos = ivec3(
-    gl_GlobalInvocationID.x % out_limits.x,
-    div_by_x % out_limits.y,
-    div_by_x / out_limits.y);
-
-  if (any(greaterThanEqual(pos, out_limits))) {
-    return;
-  }
-
-  // Compute the index of the top-left element of the overlay region. Negative
-  // indices indicate that the top-left element is in a region added by padding.
-  const ivec2 ipos = pos.xy * stride - padding;
-
-  // Compute the start and end of the input indices to load. Padding is assumed
-  // to be constant 0 padding, so any reads from the padding region is skipped.
-  const ivec2 start = ipos;
-  const ivec2 end = ipos + overlay_region.xy;
-
-  VEC4_T sum = texelFetch(t_bias, ivec2(pos.z, 0), 0);
-  int kx = 0;
-  for (int y = start.y, i = 0; i < TILE_SIZE; y += dilation.y, i++) {
-    for (int x = start.x, j = 0; j < TILE_SIZE; x += dilation.x, j++) {
-      // The weight kernel was rearranged such that every NxN filter is
-      // flattened to fit in one row. Each filter was then stacked on top of
-      // each other vertically.
-      const vec4 in_texel = texelFetch(t_in, ivec3(x, y, pos.z), 0);
-      sum = fma(in_texel, texelFetch(t_kernel, ivec2(kx, pos.z), 0), sum);
-      kx++;
-    }
-  }
-
-  imageStore(t_out, pos, op(sum, out_min, out_max));
-}
-
-#endif