CRIS v32: Remove useless CVS id tag from boot/compressed/README

arch/cris/arch-v32/boot/compressed/README

 Creation of the self-extracting compressed kernel image (vmlinuz)
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-$Id: README,v 1.1 2003/08/21 09:37:03 johana Exp $
 
 This can be slightly confusing because it's a process with many steps.