iOS: How to remove unwanted architecture from the framework file

terminal command to do this is below

#!/bin/sh
## Strips unwanted architectures
lipo -remove i386 MyFramework.framework/MyFramework -output MyFramework.framework/MyFramework
lipo -remove x86_64 MyFramework.framework/MyFramework -output MyFramework.framework/MyFramework
rm MyFramework.framework/Modules/MyFramework.swiftmodule/i386.swiftdoc
rm MyFramework.framework/Modules/MyFramework.swiftmodule/i386.swiftmodule
rm MyFramework.framework/Modules/MyFramework.swiftmodule/x86_64.swiftdoc
rm MyFramework.framework/Modules/MyFramework.swiftmodule/x86_64.swiftmodule

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