Remove unnecessary file

docs/src/models/convolution.md

@@ -1,21 +0,0 @@
-# Additional Convolution Layers
-
-## Depthwise Convolutions
-
-Using Depthwise Convolutions is pretty straightforword and much similar
-to the usage of normal Convolutions. So simply we can swap in a
-Depthwise Convolution in place of a Convolution.
-
-Lets say we have to define a simple convolution layer like
-```julia
-m = Conv((3, 3), 3=>64, pad = (1, 1))
-```
-
-The alternative to this using a Depthwise Convolution would be
-```julia
-m = Chain(DepthwiseConv((3, 3), 3=>2, pad = (1, 1)),
-          Conv((1, 1), 6=>64))
-```
-
-Incase the second argument to `DepthwiseConv` is an `Integer` instead of a
-`Pair` the channel multiplier is taken to be 1.