aarch64: Delete duplicated option docs.

Noticed while reviewing the RISC-V -mstack-protector-guard docs.  The
AArch64 section has two identical copies of the docs for this option.

	gcc/
	* doc/invoke.texi (AArch64 Options): Delete duplicate
	-mstack-protector-guard docs.

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index b6a58853a9906487564b5a808472f1f2111adb93..dea1e1866a49ce53a562f751e8a4981c4a0c8004 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -17189,24 +17189,6 @@ and from what offset from that base register. There is no default
 register or offset as this is entirely for use within the Linux
 kernel.
 
-@item -mstack-protector-guard=@var{guard}
-@itemx -mstack-protector-guard-reg=@var{reg}
-@itemx -mstack-protector-guard-offset=@var{offset}
-@opindex mstack-protector-guard
-@opindex mstack-protector-guard-reg
-@opindex mstack-protector-guard-offset
-Generate stack protection code using canary at @var{guard}.  Supported
-locations are @samp{global} for a global canary or @samp{sysreg} for a
-canary in an appropriate system register.
-
-With the latter choice the options
-@option{-mstack-protector-guard-reg=@var{reg}} and
-@option{-mstack-protector-guard-offset=@var{offset}} furthermore specify
-which system register to use as base register for reading the canary,
-and from what offset from that base register. There is no default
-register or offset as this is entirely for use within the Linux
-kernel.
-
 @item -mtls-dialect=desc
 @opindex mtls-dialect=desc
 Use TLS descriptors as the thread-local storage mechanism for dynamic accesses