Fix Zygote version

Author: ChrisRackauckas

Project.toml

@@ -6,7 +6,6 @@ version = "2.38.0"
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"
-ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
 GPUArraysCore = "46192b85-c4d5-4398-a991-12ede77f4527"
 IteratorInterfaceExtensions = "82899510-4779-5014-852e-03e436cf321d"
@@ -17,12 +16,10 @@ StaticArraysCore = "1e83bf80-4336-4d27-bf5d-d5a4f845583c"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 SymbolicIndexingInterface = "2efcf032-c050-4f8e-a9bb-153293bab1f5"
 Tables = "bd369af6-aec1-5ad0-b16a-f7cc5008161c"
-ZygoteRules = "700de1a5-db45-46bc-99cf-38207098b444"
 
 [compat]
 Adapt = "3"
 ArrayInterface = "7"
-ChainRulesCore = "0.10.7, 1"
 DocStringExtensions = "0.8, 0.9"
 GPUArraysCore = "0.1"
 IteratorInterfaceExtensions = "1"
@@ -31,7 +28,7 @@ Requires = "1.0"
 StaticArraysCore = "1.1"
 SymbolicIndexingInterface = "0.1, 0.2"
 Tables = "1"
-ZygoteRules = "0.2"
+Zygote = "= 0.6.55"
 julia = "1.6"
 
 [extensions]

src/RecursiveArrayTools.jl

@@ -9,9 +9,7 @@ using RecipesBase, StaticArraysCore, Statistics,
       ArrayInterface, LinearAlgebra
 using SymbolicIndexingInterface
 
-import ChainRulesCore
-import ChainRulesCore: NoTangent
-import ZygoteRules, Adapt
+import Adapt
 
 import Tables, IteratorInterfaceExtensions