newapkbuild: do not pass CFLAGS and CXXFLAGS explicitly

With the None build type used nowadays these should be picked up
automatically by the environment. If not, we would also need to pass
CPPFLAGS and LDFLAGS explicitly.

newapkbuild.in

@@ -66,8 +66,6 @@ build_cmake() {
 		-DCMAKE_INSTALL_LIBDIR=lib \\
 		-DBUILD_SHARED_LIBS=True \\
 		-DCMAKE_BUILD_TYPE=None \\
-		-DCMAKE_CXX_FLAGS="\$CXXFLAGS" \\
-		-DCMAKE_C_FLAGS="\$CFLAGS" \\
 		\${CMAKE_CROSSOPTS} .
 	make -C build
 __EOF__