[gspell] pkg-config file: remove exec_prefix, unused

[Sébastien Wilmet <swilmet src gnome org>]

commit 28b7e23f680e23c02ea63b5c0654eba43cad3091
Author: Sébastien Wilmet <swilmet informatique-libre be>
Date:   Tue Aug 16 16:00:00 2022 +0200

    pkg-config file: remove exec_prefix, unused
    
    The less the better, when moving to another build system it's one less
    thing to care about.

 gspell.pc.in | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/gspell.pc.in b/gspell.pc.in
index 3252f08..7fd0104 100644
--- a/gspell.pc.in
+++ b/gspell.pc.in
@@ -1,5 +1,4 @@
 prefix=@prefix@
-exec_prefix=@exec_prefix@
 libdir=@libdir@
 includedir=@includedir@