removed some unused code

Change-Id: I131a8c9f85f6b6ed054cba29e09d24cbe1d2e82f
test for void generic method

Change-Id: I56c6543bf05b9cc41dc0d7203c7ed2d6f257aae2
test Alias in the presence of generics 

Change-Id: I8ad2cd091bc5b6eb95172cd24f09319854cd7b38
getters/setters with type args in trait interface

If a trait uses another trait and instantiates type parameters, the
corresponding interface must also declare getters/setters with type
params instantiated.

Change-Id: Icc3e81086beb704489057e6b9723ff2582bbf59f
improved test for alias with generics

Change-Id: I96a92078dec1754c00f7505b2ed056d1f5c481f6
test for hide in the presence of generics 

Change-Id: Iae3b48abfa73154be162bdc5af7a5531393da6f9