mk: tidy up check_project_hashes() sha512sum check

the extra function isn't needed at all. awk can just
handle every line all at once.

Signed-off-by: Leah Rowe <leah@libreboot.org>

mk

@@ -277,9 +277,9 @@ check_project_hashes()
 	[ ! -f "$XBMK_CACHE/hash/$project$tree" ] || \
 	    read -r old_pjhash < "$XBMK_CACHE/hash/$project$tree"
 
-	x_ rm -f "$xbmktmp/project.hash"
-	fx_ create_project_hash "$datadir" "$configdir/$tree" "$mdir" \
-	    -type f -not -path "*/.git*/*"
+	fx_ sha512sum "$datadir" "$configdir/$tree" "$mdir" \
+	    -type f -not -path "*/.git*/*" | awk '{print $1}' > \
+	    "$xbmktmp/project.hash" || $err "!h $project $tree"
 
 	pjhash="$(sha512sum "$xbmktmp/project.hash" | awk '{print $1}')" || :
 	[ "$pjhash" != "$old_pjhash" ] && badhash="y"
@@ -292,12 +292,6 @@ check_project_hashes()
 	    "elf/$project/$tree" "elf/$project/$target"; :
 }
 
-create_project_hash()
-{
-	[ ! -f "$1" ] || x_ sha512sum "$1" | awk \
-	    '{print $1}' >> "$xbmktmp/project.hash" || $err "!h $1"; :
-}
-
 check_cross_compiler()
 {
 	xgccargs="UPDATED_SUBMODULES=1 CPUS=$XBMK_THREADS"