Our game's Assembly-CSharp.dll size is too big.

When I build my game on XCode 5, I get below error.

ld: Unable to insert branch island. No insertion point available. for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

The reason is Assembly-CSharp.dll bigger than 62MB.
So I reduced my c# script, and Assembly-CSharp.dll size is 61.5, I could build my game. But I have to update my game, and It would be over 62MB. I wanna reduce Assembly-CSharp.dll more and more…

Do you have any ideas?

Can you move some code into the Plugins folder? That means you end up with 2 DLLs and it should work better.