Move off SwiftInfo.transitive_defines.
Move off SwiftInfo.transitive_defines.

Just directly compute defines from the transitive modules.

PiperOrigin-RevId: 343912629
(cherry picked from commit 69a93f7cd8a0fbac1121208d004695aae5b72967)

bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi,bazelbuild/tulsi