quackboot (same idea as klompboot), from audit6

this is based directly on the audit6 final revision.

same idea as klompboot. remove u-boot and arm support,
remove pico-serprog, remove support for making release
archives, and basically see how small the build
system can possible get.

quackboot *beats* the very first klompboot, at 790 lines,
because klompboot 1 was just over 800 lines. klompboot 2
was 701 lines. vendor file logic is about 200 sloc so
the next klompboot will be about 600 lines.

this is the very first quackboot.

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

script/trees

@@ -90,7 +90,7 @@ handle_defconfig()
 {
 	target_dir="$configdir/$target"
 
-	[ -f "CHANGELOG" ] || fetch_project "$project"
+	fetch_project "$project"
 	configure_project "$target_dir" || return 0
 	x_ mkdir -p "$elfdir/$target"
 
@@ -136,7 +136,6 @@ configure_project()
 		    && break; _tcfg="${_tcfg%/*/target.cfg}/$tree/target.cfg"
 	done
 
-	[ "$XBMK_RELEASE" = "y" ] && [ "$release" = "n" ] && return 1
 	[ -z "$btype" ] || [ "${mode%config}" = "$mode" ] || return 1
 
 	[ -z "$mode" ] && build_dependencies
@@ -144,12 +143,12 @@ configure_project()
 	mdir="$PWD/config/submodule/$project"
 	[ -n "$tree" ] && mdir="$mdir/$tree"
 
-	[ -f "CHANGELOG" ] || check_project_hashes
+	check_project_hashes
 
 	[ "$mode" = "fetch" ] || x_ ./update trees -f "$project" $target
 	[ "$mode" = "fetch" ] || return 0
 
-	[ -f "CHANGELOG" ] && return 1; fetch_${cmd#build_}; return 1
+	fetch_${cmd#build_}; return 1
 }
 
 build_dependencies()