remove unused abs2

Author: araujoms

src/extras/misc.jl

@@ -40,11 +40,6 @@ function Base.clamp(x::T, lo::DoubleFloat{T}, hi::DoubleFloat{T}) where {T}
      return lo
 end
 
-abs2(x::DoubleFloat{T}) where {T} =
-    let absx = abs(x)
-        absx * absx
-    end
-
 # for compatibility with old or unrevised outside linalg functions
 function Base.:(+)(v::Vector{DoubleFloat{T}}, x::T) where {T}
     return v .+ x