[gcc r13-6608] doc: Drop a redundant link to AVR-LibC

[Gerald Pfeifer]

https://gcc.gnu.org/g:1be724089e801afc6960fcbd07b101e5baa30982

commit r13-6608-g1be724089e801afc6960fcbd07b101e5baa30982
Author: Gerald Pfeifer <gerald@pfeifer.com>
Date:   Sun Mar 12 00:00:47 2023 +0100

    doc: Drop a redundant link to AVR-LibC
    
    gcc/ChangeLog:
    
            * doc/extend.texi (Named Address Spaces): Drop a redundant link
            to AVR-LibC.

Diff:
---
 gcc/doc/extend.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index e0c5357291b..fd3745c5608 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -7906,7 +7906,7 @@ of the data but not how this data is accessed.
 In order to read data located with the @code{progmem} attribute
 (inline) assembler must be used.
 @smallexample
-/* Use custom macros from @w{@uref{http://nongnu.org/avr-libc/user-manual/,AVR-LibC}} */
+/* Use custom macros from AVR-LibC */
 #include <avr/pgmspace.h> 
 
 /* Locate var in flash memory */