bug#43195: [PATCH] Remove definitions of UP, BC and PC which should be provided by terminfo

[Fangrui Song]

Otherwise if terminfo.c is compiled with -fno-common (GCC 10 and clang
11 default) and the archive version of the terminfo library is linked,
there will be a multiple definition linker error.

* src/terminfo.c (UP, BC, PC): Delete.
---
 src/terminfo.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/terminfo.c b/src/terminfo.c
index 51fd32e9e0..cc93d1012e 100644
--- a/src/terminfo.c
+++ b/src/terminfo.c
@@ -21,12 +21,6 @@
 
 #include "lisp.h"
 
-/* Define these variables that serve as global parameters to termcap,
-   so that we do not need to conditionalize the places in Emacs
-   that set them.  */
-
-char *UP, *BC, PC;
-
 /* Interface to curses/terminfo library.
    Turns out that all of the terminfo-level routines look
    like their termcap counterparts except for tparm, which replaces
-- 
2.28.0.526.ge36021eeef-goog