Remove method for old header test.
Remove method for old header test.

Change-Id: Ib8a5ec9ced1a86dc482e6cfae989769ca2f25da7

kernelci/kernelci-backend,kernelci/kernelci-backend,joyxu/kernelci-backend,joyxu/kernelci-backend,joyxu/kernelci-backend