Remove config.guess hack in pacman

pacman/riscv64.patch

@@ -1,23 +1,8 @@
 diff --git PKGBUILD PKGBUILD
-index 8ca61cf4..1317f94c 100644
+index 8ca61cf4..83bc48bd 100644
 --- PKGBUILD
 +++ PKGBUILD
-@@ -21,6 +21,7 @@ options=('strip' 'debug')
- validpgpkeys=('6645B0A8C7005E78DB1D7864F99FFE0FEAE999BD'  # Allan McRae <[email protected]>
-               'B8151B117037781095514CA7BBDFFC92306B1121') # Andrew Gregory (pacman) <[email protected]>
- source=(https://sources.archlinux.org/other/pacman/$pkgname-$pkgver.tar.xz{,.sig}
-+        makepkg-config.guess.patch
-         "fix-wkd-lookup.patch::https://gitlab.archlinux.org/pacman/pacman/-/commit/e1246baddd14ec6f4b6270b59bea0e1b639472a7.patch"
-         add-flto-to-LDFLAGS-for-clang.patch
-         makepkg-use-ffile-prefix-map-instead-of-fdebug-prefi.patch
-@@ -30,13 +31,14 @@ source=(https://sources.archlinux.org/other/pacman/$pkgname-$pkgver.tar.xz{,.sig
-         makepkg.conf)
- sha256sums=('0db61456e56aa49e260e891c0b025be210319e62b15521f29d3e93b00d3bf731'
-             'SKIP'
-+            'b5aafad7ca54e29f4e01a81e97011169e3344629207cbf1ff6acab8ceeff68c1'
-             '8ab5b1338874d7d58e11c5d1185ea3454fcc89755f9c18faf87ff348ad1ed16c'
-             '82ff91b85f4c6ceba19f9330437e2a22aabc966c2b9e2a20a53857f98a42c223'
-             'b940e6c0c05a185dce1dbb9da0dcbebf742fca7a63f3e3308d49205afe5a6582'
+@@ -36,7 +36,7 @@ sha256sums=('0db61456e56aa49e260e891c0b025be210319e62b15521f29d3e93b00d3bf731'
              '7d0aee976c9c71fcf7c96ef1d99aa76efe47d8c1f4451842d6d159ec7deb4278'
              '5b43e26a76be3ed10a69d4bfb2be48db8cce359baf46583411c7f124737ebe6a'
              '606e55f06c297d2b508bc4438890b229a1abaa68b0374a2d7f94c8e7be6792d7'