Revert "PLT-404 Changed workarounds to explicit flags"

This reverts commit 97966eb772aca5c70f27cd95a322786e9f7bd7e8.
Revert "PLT-399 Changed getIborIndex to public"

This reverts commit b0ae63eb1ab2ed3fb1f7fe84dc49bd7a878989b1.
Revert "PLT-399 Refactored references to swaps"

This reverts commit f45e138bcb2c4846ef9474a7d80f1598e37d1da9.
Revert "PLT-399 Added missing IborIndexVisitor"

This reverts commit 705889f5482bec1f6d9c096da5af48d855970800.
Revert "PLT-399 Added LastTimeIndexCalculator that can be used for basis curve calibration. Reviewed by Paul"

This reverts commit 17eb4be5e31428a602344fdfed0efb331b0f6ba1.