fix: keepHistory is false by default

Signed-off-by: Devin Buhl <devin@buhl.casa>

bootstrap/templates/kubernetes/apps/network/ingress-nginx/external/helmrelease.yaml.j2

@@ -20,8 +20,6 @@ spec:
     cleanupOnFail: true
     remediation:
       retries: 3
-  uninstall:
-    keepHistory: false
   dependsOn:
     - name: cloudflared
       namespace: network

bootstrap/templates/kubernetes/apps/network/ingress-nginx/internal/helmrelease.yaml.j2

@@ -21,8 +21,6 @@ spec:
     cleanupOnFail: true
     remediation:
       retries: 3
-  uninstall:
-    keepHistory: false
   values:
     fullnameOverride: ingress-nginx-internal
     controller: