tweaks, to trash later

Author: Michael Abbott

src/deprecations.jl

@@ -44,7 +44,7 @@ Zygote.@adjoint function broadcasted(::typeof(+), a::AbstractArray{<:Number}, b:
 end
 Zygote.@adjoint function broadcasted(::typeof(+), b::Bool, a::AbstractArray{<:Number})
   y = b === false ? a : b .+ a
-  return y, Δ -> (nothing, nothing, Δ)
+  y, Δ -> (nothing, nothing, Δ)
 end
 
 
@@ -53,23 +53,22 @@ Zygote.@adjoint function broadcasted(::typeof(-), a::AbstractArray{<:Number}, b:
   y, Δ -> (nothing, Δ, nothing)
 end
 Zygote.@adjoint function broadcasted(::typeof(-), b::Bool, a::AbstractArray{<:Number})
-  y = b === false ? .-a : b .- a
-  return y, Δ -> (nothing, nothing, .-Δ)
+  b .- a, Δ -> (nothing, nothing, .-Δ)
 end
 
 
 Zygote.@adjoint function broadcasted(::typeof(*), a::AbstractArray{<:Number}, b::Bool)
   if b === false
-    return zero(a), Δ -> (nothing, zero(Δ), nothing)
+    zero(a), Δ -> (nothing, zero(Δ), nothing)
   else
-    return a, Δ -> (nothing, Δ, nothing)
+    a, Δ -> (nothing, Δ, nothing)
   end
 end
 Zygote.@adjoint function broadcasted(::typeof(*), b::Bool, a::AbstractArray{<:Number})
   if b === false
-    return zero(a), Δ -> (nothing, nothing, zero(Δ))
+    zero(a), Δ -> (nothing, nothing, zero(Δ))
   else
-    return a, Δ -> (nothing, nothing, Δ)
+    a, Δ -> (nothing, nothing, Δ)
   end
 end