删除多余的kcp lib

Unity/Assets/Plugins/Android/libs/arm64-v8a.meta

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Unity/Assets/Plugins/Android/libs/arm64-v8a/libkcp.so.meta

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+  validateReferences: 1
+  platformData:
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+      Android: Android
+    second:
+      enabled: 1
+      settings:
+        CPU: ARM64
+  - first:
+      Any: 
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+      enabled: 0
+      settings: {}
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+      enabled: 0
+      settings:
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Unity/Assets/Plugins/iOS/libkcp.a.meta

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+  validateReferences: 1
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+      enabled: 0
+      settings: {}
+  - first:
+      Editor: Editor
+    second:
+      enabled: 0
+      settings:
+        DefaultValueInitialized: true
+  - first:
+      iPhone: iOS
+    second:
+      enabled: 1
+      settings:
+        AddToEmbeddedBinaries: false
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