refactor: remove unnecessary assembly definition (MirageNet#599)

Assets/Mirage/MirageNG -> Mirage
Assets/Mirage/Runtime/Mirage -> Removed

BREAKING CHANGE: removed MirageNG.asmdef,  change your assembly to use Mirage.asmdef instead

.releaserc.yml

@@ -5,7 +5,6 @@ plugins:
   - - '@semantic-release/exec'
     - prepareCmd: "sed -i -e '/AssemblyVersion/s/\".*\"/\"${nextRelease.version}\"/' 
         Assets/Mirage/Runtime/AssemblyInfo.cs
-        Assets/Mirage/AssemblyInfo.cs
         Assets/Mirage/Runtime/Transport/Kcp/AssemblyInfo.cs
         Assets/Mirage/Weaver/AssemblyInfo.cs
         Assets/Mirage/Components/AssemblyInfo.cs
@@ -20,7 +19,6 @@ plugins:
   - - '@semantic-release/git'
     - assets:
         - 'Assets/Mirage/Runtime/AssemblyInfo.cs'
-        - 'Assets/Mirage/AssemblyInfo.cs'
         - 'Assets/Mirage/Runtime/Transport/Kcp/AssemblyInfo.cs'
         - 'Assets/Mirage/Weaver/AssemblyInfo.cs'
         - 'Assets/Mirage/Components/AssemblyInfo.cs'

Assets/Mirage/MirageNG.asmdef → Assets/Mirage/Mirage.asmdef

@@ -1,7 +1,6 @@
 {
-    "name": "MirageNG",
+    "name": "Mirage",
     "references": [
-        "Mirage",
         "UniTask",
         "UniTask.Linq"
     ],

Assets/Mirage/Runtime/AssemblyInfo.cs

@@ -1,5 +1,5 @@
-using System.Reflection;
 using System.Runtime.CompilerServices;
+using System.Reflection;
 
 [assembly:AssemblyVersion("66.2.2")]