Remove implementation doctest

This doctest is bad, because it tests the internal representation of
the macro, not its behavior. With the additional features added to
the macro, the expansion is no longer as simple, so remove the test.

base/reflection.jl

@@ -1393,23 +1393,6 @@ It also supports the following syntax:
     (as well as `f` itself if it is not a literal global) will be evaluated
     in the current world age.
 
-```jldoctest
-julia> @macroexpand @invokelatest f(x; kw=kwv)
-:(Base.invokelatest(f, x; kw = kwv))
-
-julia> @macroexpand @invokelatest x.f
-:(Base.invokelatest(Base.getproperty, x, :f))
-
-julia> @macroexpand @invokelatest x.f = v
-:(Base.invokelatest(Base.setproperty!, x, :f, v))
-
-julia> @macroexpand @invokelatest xs[i]
-:(Base.invokelatest(Base.getindex, xs, i))
-
-julia> @macroexpand @invokelatest xs[i] = v
-:(Base.invokelatest(Base.setindex!, xs, v, i))
-```
-
 !!! compat "Julia 1.7"
     This macro requires Julia 1.7 or later.