Remove calls to 'y' macro.

tools/debugscripts/gdbinit.i386

@@ -231,7 +231,6 @@ end
 # pcb <pid>
 # show contents of pcb, currently only i386.
 define pcb
-y
     set $nproc = nprocs
     set $aproc = allproc.lh_first
     set $proc = allproc.lh_first
@@ -276,7 +275,6 @@ end
 # backtrace for process <pid>.  Uses btr (machine dependent) to perform the backtrace.
 # may produce nonsense.
 define btp
-y
     set $nproc = nprocs
     set $aproc = allproc.lh_first
     set $proc = allproc.lh_first

tools/debugscripts/gdbinit.kernel

@@ -339,7 +339,6 @@ define kernel
 end
 
 define kldstat
-y
   set $kld = linker_files.tqh_first
   printf "Id Refs Address    Size     Name\n"
   while ($kld != 0)
@@ -354,7 +353,6 @@ document kldstat
 end
  
 define kldstat-v
-y
   set $kld = linker_files.tqh_first
   printf "Id Refs Address    Size     Name\n"
   while ($kld != 0)

tools/debugscripts/gdbinit.vinum

@@ -299,7 +299,6 @@ document rqinfo
 Show the Vinum request log buffer like 'vinum info -V'
 end
 define meminfo
-y
 printf "Block\t\tTime\t\tSequence\t  size\t  address\t  line\t\tfile\n"
 set $i = 0
 while $i < malloccount
@@ -311,7 +310,6 @@ document meminfo
 Equivalent of 'vinum info -v' command
 end
 define finfo
-y
 printf "Block\t\tTime\t\tSequence\t  size\t  address\t  line\t\tfile\n"
 set $i = lastfree
 set $j = 0