Summary:
The previous fix for -DNDEBUG required to install the pods with PRODUCTION=1 in order to add the flag. The flag was added also to Debug configurations, which is not ideal.
With this change, we remove the requirement of running `PRODUCTION=1 pod install` and we install the -DNDEBUG flag to all the release configurations.
## Changelog:
[iOS][Changed] - Install the -DNDEBUG flag on Release configurations, without requiring PRODUCTION=1 flag
Reviewed By: cortinico
Differential Revision: D43535620
fbshipit-source-id: af97bef06f267dddd5ce13a466bbc8d9a5eb2b0b