Removed unused helpers and builtins from compiler

[spencercorwin]

For example: UnusedMapGetHelper.ts, UnusedMapHasKeyHelper.ts, UnusedMapSetHelper.ts, UnusedMapDeleteHelper.ts

These four were created when contemplating how to keep our runtime type info and object value info in map stack items once they changed the VM to only allow primitive stack items to serve as map stack item keys.

[spencercorwin]

Can remove CoerceToIntHelper too

[spencercorwin]

Can probably remove processedTransactions and claimedTransaction helpers.