remove Fp2:getBitSize()

include/mcl/ec.hpp

@@ -647,7 +647,7 @@ public:
 	}
 	static inline bool isIoEcCompSupported()
 	{
-		return !b_.isZero() && (Fp::getBitSize() & 7) != 0;
+		return !b_.isZero() && (Fp::BaseFp::getBitSize() & 7) != 0;
 	}
 	/*
 		see mcl/op.hpp for the format of ioMode

include/mcl/fp_tower.hpp

@@ -103,8 +103,6 @@ class Fp2T : public fp::Operator<Fp2T<Fp> > {
 public:
 	typedef typename Fp::BaseFp BaseFp;
 	static const size_t maxSize = Fp::maxSize * 2;
-	// not Fp::getBitSize() * 2
-	static inline size_t getBitSize() { return Fp::getByteSize() * 8 + Fp::getBitSize(); }
 	static inline size_t getByteSize() { return Fp::getByteSize() * 2; }
 	void dump() const
 	{