powerpc: kgdb: Remove OUTBUFMAX constant
This constant was introduced in commit 17ce452f7ea3 ("kgdb, powerpc:
arch specific powerpc kgdb support"), but it is no longer used anywhere
in the source tree.
Signed-off-by: Miquel Sabaté Solà <mikisabate@gmail.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250915141808.146695-1-mikisabate@gmail.com
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