[glibc] Drop source dependencies on hooks.c and arena.c

[glibc] Drop source dependencies on hooks.c and arena.c

[Siddhesh Poyarekar]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7df5c7bcce5c3e6f6984441d9c4851dba5aacac5

commit 7df5c7bcce5c3e6f6984441d9c4851dba5aacac5
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date:   Sat Jul 3 00:46:46 2021 +0530

    Drop source dependencies on hooks.c and arena.c
    
    Dependencies on hooks.c and arena.c get auto-computed when generating
    malloc.o{,s}.d so there is no need to add them manually.
    
    Reviewed-by: Carlos O'Donell <carlos@redhat.com>
    Reviewed-by: Andreas Schwab <schwab@linux-m68k.org>

Diff:
---
 malloc/Makefile | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/malloc/Makefile b/malloc/Makefile
index c8256abbbf..2f9b3d596d 100644
--- a/malloc/Makefile
+++ b/malloc/Makefile
@@ -269,10 +269,6 @@ $(objpfx)memusage: memusage.sh
 	    -e 's|@REPORT_BUGS_TO@|$(REPORT_BUGS_TO)|' $^ > $@.new \
 	&& rm -f $@ && mv $@.new $@ && chmod +x $@
 
-
-# Extra dependencies
-$(foreach o,$(all-object-suffixes),$(objpfx)malloc$(o)): arena.c hooks.c
-
 # Compile the tests with a flag which suppresses the mallopt call in
 # the test skeleton.
 $(tests:%=$(objpfx)%.o): CPPFLAGS += -DTEST_NO_MALLOPT