Remove addins files, which are no longer used

NUnitConsole.sln

@@ -10,8 +10,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.gitignore = .gitignore
 		appveyor.yml = appveyor.yml
 		azure-pipelines.yml = azure-pipelines.yml
-		build.cake = build.cake
 		BREAKING_CHANGES.md = BREAKING_CHANGES.md
+		build.cake = build.cake
 		build.ps1 = build.ps1
 		build.sh = build.sh
 		BUILDING.md = BUILDING.md
@@ -58,7 +58,6 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "engine", "engine", "{43A219A8-2995-4884-806F-FDB9CD25D403}"
 	ProjectSection(SolutionItems) = preProject
 		nuget\engine\nunit.engine.api.nuspec = nuget\engine\nunit.engine.api.nuspec
-		nuget\engine\nunit.engine.nuget.addins = nuget\engine\nunit.engine.nuget.addins
 		nuget\engine\nunit.engine.nuspec = nuget\engine\nunit.engine.nuspec
 	EndProjectSection
 EndProject

choco/nunit-console-runner.nuspec

@@ -34,7 +34,6 @@
     <file src = "../LICENSE.txt" target = "tools" />
     <file src = "../NOTICES.txt" target = "tools" />
     <file src = "VERIFICATION.txt" target = "tools" />
-    <file src = "nunit.choco.addins" target = "tools" />
 
     <file src = "$BIN_DIR$net462/nunit-console.exe" target="tools" />
     <file src = "$BIN_DIR$net462/nunit-console.exe.config" target="tools" />

nuget/engine/nunit.engine.nuspec

@@ -46,7 +46,6 @@
     <file src="net462/nunit.engine.api.dll" target="lib/net462" />
     <file src="net462/nunit.engine.api.pdb" target="lib/net462" />
     <file src="net462/testcentric.metadata.dll" target="lib/net462" />
-    <file src="../../nuget/engine/nunit.engine.nuget.addins" target="lib/net462"/>
 
     <file src="net8.0/nunit.engine.dll" target="lib/net8.0" />
     <file src="net8.0/nunit.engine.pdb" target="lib/net8.0" />
@@ -62,7 +61,6 @@
     <file src="net8.0/nunit.engine.api.pdb" target="lib/net8.0" />
     <file src="net8.0/testcentric.metadata.dll" target="lib/net8.0" />
     <file src="net8.0/Microsoft.Extensions.DependencyModel.dll" target="lib/net8.0" />
-    <file src="../../nuget/engine/nunit.engine.nuget.addins" target="lib/net8.0"/>
 
     <file src="../../nuget/engine/build/**/*" target="build" />
     <file src="../../nunit_256.png" target="images" />

nuget/runners/nunit.console-runner.netcore.nuspec

@@ -50,7 +50,6 @@
     <file src="net8.0/nunit.engine.api.xml" target="tools/net8.0/any" />
     <file src="net8.0/testcentric.metadata.dll" target="tools/net8.0/any" />
     <file src="net8.0/Microsoft.Extensions.DependencyModel.dll" target="tools/net8.0/any" />
-    <file src="../../nuget/runners/nunit.console.nuget.addins" target="tools/net8.0/any"/>
     <file src="../../nuget/runners/DotnetToolSettings.xml" target="tools/net8.0/any"/>
     <file src="../../nunit_256.png" target="images"/>
   </files>

nuget/runners/nunit.console-runner.nuspec

@@ -47,7 +47,6 @@
     <file src="net462/nunit.engine.dll" target="tools" />
     <file src="net462/nunit.engine.pdb" target="tools" />
     <file src="net462/testcentric.metadata.dll" target="tools" />
-    <file src="../../nuget/runners/nunit.console.nuget.addins" target="tools"/>
     <file src="../../nunit_256.png" target="images"/>
   </files>
 </package>