fix format, test=develop

lite/kernels/arm/conv_compute.cc

@@ -118,7 +118,6 @@ void ConvCompute<PRECISION(kInt8), PRECISION(kFloat)>::PrepareForRun() {
   bool flag_dw_3x3 = (kw == 3 && kh == 3 && (sw == 1 || sw == 2));
   bool flag_dw_5x5 = pads_all_equal && (kw == 5 && (sw == 1 || sw == 2));
   bool flag_dw = flag_dw_3x3 || flag_dw_5x5;
-  
   if (param.groups == ic && ic == oc && kps_equal && pads_equal &&
       no_dilation && flag_dw) {
     impl_ = new DepthwiseConv<PRECISION(kInt8), PRECISION(kFloat)>;