remove unused var

include/mcl/vint.hpp

@@ -1063,7 +1063,7 @@ public:
 		}
 		return;
 	ERR:
-		throw std::invalid_argument(std::string("bad digit `") + str + "`");
+		throw cybozu::Exception("VintT:setStr") << str << base;
 	}
 	static int compare(const VintT& x, const VintT& y)
 	{

test/glv_test.cpp

@@ -162,7 +162,6 @@ void testGLV2()
 	mpz_class lambda = 6 * z * z;
 	mcl::bn::GLV2<Fp2> glv2;
 	glv2.init(r, z);
-	mpz_class u[4];
 	mpz_class n;
 	cybozu::XorShift rg;
 	BN::mapToG2(Q0, 1);