Remove unneded experimental helper and update requirement

manifest.toml

@@ -20,7 +20,7 @@ code = "https://github.com/mikaku/Monitorix"
 cpe = "cpe:2.3:a:fibranet:monitorix"
 
 [integration]
-yunohost = ">= 11.0.11"
+yunohost = ">= 11.2.11"
 architectures = "all"
 multi_instance = false
 ldap = "not_relevant"

scripts/experimental_helper.sh

@@ -133,30 +133,3 @@ ynh_add_jinja_config() {
     )
     ynh_store_file_checksum --file="$destination"
 }
-
-# Check either a package is installed or not
-#
-# example: ynh_package_is_installed --package=yunohost && echo "installed"
-#
-# usage: ynh_package_is_installed --package=name [--wait_dpkg_free]
-# | arg: -p, --package=          - the package name to check
-# | arg: -l, --wait_dpkg_free=   - wait for dpkg to be free.
-# |                                Note that waiting on dpkg free could take about 0.2s on quick platform
-# |                                and about 2 seconds on slow platform so in case of multiple call it could be slow
-# | ret: 0 if the package is installed, 1 else.
-ynh_package_is_installed() {
-    # Declare an array to define the options of this helper.
-    local legacy_args=pl
-    local -A args_array=([p]=package= [l]=wait_dpkg_free=)
-    local package
-    local wait_dpkg_free
-    # Manage arguments with getopts
-    ynh_handle_getopts_args "$@"
-    wait_dpkg_free="${wait_dpkg_free:-0}"
-
-    if [ "$wait_dpkg_free" -eq 1 ]; then
-        ynh_wait_dpkg_free
-    fi
-    dpkg-query --show --showformat='${Status}' "$package" 2>/dev/null \
-        | grep --count "ok installed" &>/dev/null
-}