Don't create schema every time it is applied

[AMHOL]

There is a mistake in the code currently which causes a new dry-data schema to be created each time the schema is applied, this should be updated and the schema should be cached in the @coercer ivar here

[cflipse]

Accounted for by removing the schema code to replace with the core version: 9a286703ce4db593d93b5e816658c9309093621f