The logic can be incorporated into configure.sh

Removes a dependency on ios-version.sh which was not part of DIST-SRCS
and removes a warning from 'make dist' sub builds:

../src/build/make/configure.sh: line 787:
../src/build/make/ios-version.sh: No such file or directory

Change-Id: Ic38314708eb278dd9d2a9769a670da32f6126637