Remove obsolete patches

debootstrap-backport-zstd-support.patch

@@ -1,18 +0,0 @@
---- /usr/share/debootstrap/functions.orig	2021-10-23 23:13:10.576805331 +0000
-+++ /usr/share/debootstrap/functions	2021-10-23 23:14:05.465350379 +0000
-@@ -974,6 +974,7 @@
- 	case "$tarball" in
- 		control.tar.gz) cat_cmd=zcat ;;
- 		control.tar.xz) cat_cmd=xzcat ;;
-+		control.tar.zst) cat_cmd=zstdcat ;;
- 		control.tar)    cat_cmd=cat ;;
- 		*) error 1 UNKNOWNCONTROLCOMP "Unknown compression type for %s in %s" "$tarball" "$pkg" ;;
- 	esac
-@@ -996,6 +997,7 @@
- 		data.tar.gz)  cat_cmd=zcat ;;
- 		data.tar.bz2) cat_cmd=bzcat ;;
- 		data.tar.xz)  cat_cmd=xzcat ;;
-+		data.tar.zst) cat_cmd=zstdcat ;;
- 		data.tar)     cat_cmd=cat ;;
- 		*) error 1 UNKNOWNDATACOMP "Unknown compression type for %s in %s" "$tarball" "$pkg" ;;
- 	esac

live-build-fix-shim-remove.patch

@@ -1,16 +0,0 @@
---- binary_grub-efi	2021-04-02 15:43:54.000000000 +0000
-+++ binary_grub-efi_v2	2021-10-23 22:43:57.314540341 +0000
-@@ -280,8 +280,12 @@
- 		# Saving cache
- 		Save_package_cache binary
-
--		# Removing depends
-+		# Removing depends, some bootloader packages are marked as Protected/Important
-+		# in Ubuntu, so temporarily add an apt flag to allow them to be removed
-+		PRE_APT_OPTIONS="${APT_OPTIONS}"
-+		APT_OPTIONS="${APT_OPTIONS} --allow-remove-essential"
- 		Remove_packages
-+		APT_OPTIONS="${PRE_APT_OPTIONS}"
- 		;;
-
- 	false)