Remove empty orgs

Author: inkydragon

community/organizations.md

@@ -28,7 +28,6 @@ The following is a non-comprehensive list of Julia GitHub organizations, grouped
 * [JuliaImages](https://github.com/JuliaImages) – Julia packages for image processing
 * [JuliaPackaging](https://github.com/JuliaPackaging) – Tooling for Julia's binary packages and dependencies
 * [JuliaPluto](https://github.com/JuliaPluto) – Packages related to the [Pluto.jl](https://github.com/fonsp/Pluto.jl) notebook
-* [JuliaPraxis](https://github.com/JuliaPraxis) – Best practices ([Gitter](https://gitter.im/JuliaPraxis))
 * [JuliaPy](https://github.com/JuliaPy) – Software that connects the Julia and Python languages.
 * [JuliaStrings](https://github.com/JuliaStrings)
 * [Julia Testing](https://github.com/JuliaTesting) - Testing tools for the Julia language
@@ -38,7 +37,6 @@ The following is a non-comprehensive list of Julia GitHub organizations, grouped
 
 ### Computing
 
-* [JuliaActors](https://github.com/JuliaActors) – Concurrent Programming with the Actor Model
 * [JuliaArrays](https://github.com/JuliaArrays) – Custom array types (and utilities for building array types)
 * [JuliaBerry](https://github.com/JuliaBerry) – [Julia resources for the Raspberry Pi](https://juliaberry.github.io/)
 * [JuliaCI](https://github.com/JuliaCI) – Continuous Integration Support for Julia packages