remove Statistics method for package exntension

Author: hyrodium

src/FixedPointNumbers.jl

@@ -9,7 +9,6 @@ import Base: ==, <, <=, -, +, *, /, ~, isapprox,
              signed, unsigned, copysign, flipsign, signbit,
              length
 
-import Statistics   # for _mean_promote
 import Random: Random, AbstractRNG, SamplerType, rand!
 
 import Base.Checked: checked_neg, checked_abs, checked_add, checked_sub, checked_mul,
@@ -557,10 +556,6 @@ Base.mul_prod(x::FixedPoint, y::FixedPoint) = Treduce(x) * Treduce(y)
 Base.reduce_empty(::typeof(Base.mul_prod), ::Type{F}) where {F<:FixedPoint} = one(Treduce)
 Base.reduce_first(::typeof(Base.mul_prod), x::FixedPoint)  = Treduce(x)
 
-if isdefined(Statistics, :_mean_promote)
-    Statistics._mean_promote(x::Real, y::FixedPoint) = Treduce(y)
-end
-
 """
     sd, ad = scaledual(s::Number, a)