Update scalars.jl

Author: ChrisRackauckas

src/derivatives/scalars.jl

@@ -117,5 +117,5 @@ end
     return nothing
 end
 
-Base.prevfloat(r::ReverseDiff.TrackedReal) = r - eps(ReverseDiff.value(r))
-Base.nextfloat(r::ReverseDiff.TrackedReal) = r + eps(ReverseDiff.value(r))
+Base.prevfloat(r::TrackedReal) = r - eps(value(r))
+Base.nextfloat(r::TrackedReal) = r + eps(value(r))