Remove explicit != methods for Dual

[JamesWrigley]

These are already defined by Base in terms of ==.

Fixes these invalidations seen when loading CurveFit.jl (CC @ChrisRackauckas):

 inserting !=(x::Integer, y::ForwardDiff.Dual{Ty}) where Ty @ ForwardDiff ~/.julia/packages/ForwardDiff/9ocoj/src/dual.jl:159 invalidated: backedges:1: superseding !=(x, y) @ Base operators.jl:321 with MethodInstance for!=(::Int64, ::Any) (1 children) 2: superseding !=(x, y) @ Base operators.jl:321 with MethodInstance for!=(::Int32, ::Any) (49 children) 3: superseding !=(x, y) @ Base operators.jl:321 with MethodInstance for!=(::Int64, ::Any) (97 children) inserting !=(x::ForwardDiff.Dual{Tx}, y::Integer) where Tx @ ForwardDiff ~/.julia/packages/ForwardDiff/9ocoj/src/dual.jl:158 invalidated: backedges:1: superseding !=(x, y) @ Base operators.jl:321 with MethodInstance for!=(::Any, ::Bool) (24 children) 2: superseding !=(x, y) @ Base operators.jl:321 with MethodInstance for!=(::Any, ::Int64) (38 children) 3: superseding !=(x, y) @ Base operators.jl:321 with MethodInstance for!=(::Any, ::Int64) (202 children) 

Would it be possible to make a new release with this?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.75%. Comparing base (71258ec) to head (b50f9a7).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@ Coverage Diff @@## master #793 +/- ##
=======================================
Coverage 90.75% 90.75% =======================================
Files 11 11 Lines 1071 1071 =======================================
Hits 972 972 Misses 99 99 

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[JamesWrigley]

pre failures seem to be because of a JET incompatibility.

[devmotion]

Thanks, seems like a good change, cf https://github.com/JuliaLang/julia/blob/f726949136712f84e8ecfea7429d23e626683c80/base/operators.jl#L308

Can you update the version number?

[JamesWrigley]

Sure, done in b50f9a7.