refactor: remove the *.xcodeproj from ios template

[satya164]

Summary

This removes the *.xcodeproj from the ios directory in the generated library. These files are not needed for autolinking, and keeping them has few downsides:

• People open this project instead of example and it doesn't work, so it adds confusion
• It's a big unreadable file to maintain, both for library developers and for us

Test plan

Generate a project without the *.xcodeproj and verify that it compiles and runs

[YOEL311]

Hey @satya164
I need to create a module that uses with local library .framework
how i can link the .framework files without the xcodeproj file?

[gausam]

@satya164 could this perhaps return as an optional flag during install? I've also run into the same need as @YOEL311's.

[satya164]

@gausam dependencies in react native libraries are managed with cocoapods, not with xcodeproj file. you need to include your framework using cocoapods #379