Drop rust packages.

This is the equivalent of IBS delete requests:

390500 rust1.78                       -> 1-MinimalX   (delete request)
390502 rust1.81                       -> 1-MinimalX   (delete request)
390503 rust1.82                       -> 1-MinimalX   (delete request)
390504 rust1.83                       -> 1-MinimalX   (delete request)
390507 rust1.86                       -> 1-MinimalX   (delete request)
390508 rust1.87                       -> 1-MinimalX   (delete request)
390505 rust1.84                       -> 1-MinimalX   (delete request)
390506 rust1.85                       -> 1-MinimalX   (delete request)
390501 rust1.80                       (delete request)
390509 cargo-audit-advisory-db        (delete request)

.gitmodules

@@ -10770,14 +10770,6 @@
 	path = gfs2-utils
 	url = ../../pool/gfs2-utils
 	branch = slfo-main
-[submodule "rust1.78"]
-	path = rust1.78
-	url = ../../pool/rust1.78
-	branch = slfo-main
-[submodule "rust1.80"]
-	path = rust1.80
-	url = ../../pool/rust1.80
-	branch = slfo-main
 [submodule "crmsh"]
 	path = crmsh
 	url = ../../pool/crmsh
@@ -10962,10 +10954,6 @@
 	path = rtrlib
 	url = ../../pool/rtrlib
 	branch = slfo-main
-[submodule "rust1.81"]
-	path = rust1.81
-	url = ../../pool/rust1.81
-	branch = slfo-main
 [submodule "libunibreak"]
 	path = libunibreak
 	url = ../../pool/libunibreak
@@ -11226,10 +11214,6 @@
 	path = libHBAAPI2
 	url = ../../pool/libHBAAPI2
 	branch = slfo-main
-[submodule "rust1.82"]
-	path = rust1.82
-	url = ../../pool/rust1.82
-	branch = slfo-main
 [submodule "vexctl"]
 	path = vexctl
 	url = ../../pool/vexctl
@@ -11510,10 +11494,6 @@
 	path = perl-Unicode-Collate
 	url = ../../pool/perl-unicode-collate
 	branch = slfo-main
-[submodule "rust1.83"]
-	path = rust1.83
-	url = ../../pool/rust1.83
-	branch = slfo-main
 [submodule "tcpdump"]
 	path = tcpdump
 	url = ../../pool/tcpdump
@@ -11758,10 +11738,6 @@
 	path = realmd
 	url = ../../pool/realmd
 	branch = slfo-main
-[submodule "rust1.84"]
-	path = rust1.84
-	url = ../../pool/rust1.84
-	branch = slfo-main
 [submodule "virtual-host-gatherer"]
 	path = virtual-host-gatherer
 	url = ../../pool/virtual-host-gatherer
@@ -12170,10 +12146,6 @@
 	path = python-pyspnego
 	url = ../../pool/python-pyspnego
 	branch = slfo-main
-[submodule "rust1.85"]
-	path = rust1.85
-	url = ../../pool/rust1.85
-	branch = slfo-main
 [submodule "clamav"]
 	path = clamav
 	url = ../../pool/clamav
@@ -12538,10 +12510,6 @@
 	path = cargo-audit
 	url = ../../pool/cargo-audit
 	branch = slfo-main
-[submodule "cargo-audit-advisory-db"]
-	path = cargo-audit-advisory-db
-	url = ../../pool/cargo-audit-advisory-db
-	branch = slfo-main
 [submodule "docker-stable"]
 	path = docker-stable
 	url = ../../pool/docker-stable
@@ -12922,10 +12890,6 @@
 	path = python-zodbpickle
 	url = ../../pool/python-zodbpickle
 	branch = slfo-main
-[submodule "rust1.86"]
-	path = rust1.86
-	url = ../../pool/rust1.86
-	branch = slfo-main
 [submodule "cnf"]
 	path = cnf
 	url = ../../pool/cnf
@@ -13106,10 +13070,6 @@
 	path = rsyslog
 	url = ../../pool/rsyslog
 	branch = slfo-main
-[submodule "rust1.87"]
-	path = rust1.87
-	url = ../../pool/rust1.87
-	branch = slfo-main
 [submodule "selinux-policy-sapenablement"]
 	path = selinux-policy-sapenablement
 	url = ../../pool/selinux-policy-sapenablement