unicore32: remove unused lines in arch/unicore32/include/asm/irq.h
unicore32: remove unused lines in arch/unicore32/include/asm/irq.h

Signed-off-by: Guan Xuetao <e3695cf74a76bd4528efcb62d7670a686738ecc1@mprc.pku.edu.cn>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs