[ci-skip] remove second readme badge

Author: ChrisRackauckas

README.md

@@ -1,7 +1,5 @@
 # DiffEqOperators.jl
 
-[![Build Status](https://github.com/SciML/DiffEqOperators.jl/workflows/CI/badge.svg)](https://github.com/SciML/DiffEqOperators.jl/actions?query=workflow%3ACI)
-
 [![Build Status](https://github.com/SciML/DiffEqOperators.jl/workflows/CI/badge.svg)](https://github.com/SciML/DiffEqOperators.jl/actions?query=workflow%3ACI)
 [![GitlabCI](https://gitlab.com/JuliaGPU/DiffEqOperators.jl/badges/master/pipeline.svg)](https://gitlab.com/JuliaGPU/DiffEqOperators.jl/pipelines)
 [![Stable](https://img.shields.io/badge/docs-stable-blue.svg)](http://diffeqoperators.sciml.ai/stable/)