Remove All CVS Id Strings Possible Using a Script

Script does what is expected and tries to do it as
smartly as possible.

+ remove occurrences of two blank comment lines
  next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
  contain CVS Ids
+ If the processing left a blank line at the top of
  a file, it was removed.

c/src/lib/libbsp/sparc/shared/irq_asm.S

@@ -17,8 +17,6 @@
  *
  *  ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995.
  *  European Space Agency.
- *
- *  $Id$
  */
 
 #include <rtems/asm.h>