Remove haproxy workaround on Ubuntu 24.04 (#2161)

Author: eramongodb

.evergreen/generated_configs/legacy-config.yml

@@ -820,14 +820,6 @@ tasks:
       SSL: ssl
       TOPOLOGY: sharded_cluster
   - func: fetch-det
-  - command: shell.exec
-    type: test
-    params:
-      working_dir: mongoc
-      shell: bash
-      script: |-
-        set -o errexit
-        sudo apt install -y haproxy
   - func: start-load-balancer
     vars:
       MONGODB_URI: mongodb://localhost:27017,localhost:27018

.evergreen/legacy_config_generator/evergreen_config_lib/tasks.py

@@ -424,7 +424,6 @@ def post_commands(self) -> Iterable[Value]:
         if self.settings.loadbalanced:
             dns = 'loadbalanced'
             yield func('fetch-det')
-            yield shell_mongoc('sudo apt install -y haproxy') # DEVPROD-22829
             yield func('start-load-balancer', MONGODB_URI='mongodb://localhost:27017,localhost:27018')
         elif self.settings.auth:
             dns = 'dns-auth'