Merge ~canonical-is-bootstack/charm-grafana:fix/remove-trusty-support into charm-grafana:master

[Alvaro Uria]

Remove trusty support

[🤖 Canonical IS Merge Bot (canonical-is-mergebot)]

This merge proposal is being monitored by mergebot. Change the status to Approved to merge.

[Alvaro Uria (aluria)]

trivial change to remove trusty support. Functional tests have been run and all passed.

review: Approve

diff --git a/metadata.yaml b/metadata.yaml
index f5a762b..54efd4f 100644
--- a/metadata.yaml
+++ b/metadata.yaml
@@ -1,14 +1,13 @@
 name: grafana
 summary: Graph and Dashboard builder
-maintainer: Prometheus Charmers <[e-mail]>
+maintainer: LMA Charmers <[e-mail]>
 description: |
    Grafana is the leading graph and dashboard builder for visualizing
    time series metrics.
 series:
-  - xenial
   - bionic
   - focal
-  - trusty
+  - xenial
 tags:
   - misc
   - monitoring
diff --git a/tests/functional/test_deploy.py b/tests/functional/test_deploy.py
index 45dbc16..11447b7 100644
--- a/tests/functional/test_deploy.py
+++ b/tests/functional/test_deploy.py
@@ -21,7 +21,6 @@ OVERLAY_PATH = os.path.join(CHARM_BUILD_DIR, "..", "overlay.yaml")
 APP_SERIES = [
     "xenial",
     "bionic",
-    # "trusty",  # not supported in LXD containers
 ]
 FAKE_INSTALL_METHOD = 'wrong-method'
 INSTALL_METHOD = {
@@ -39,7 +38,6 @@ APP_SERIES_INSTALL_METHOD_MAP = [
     [series, install_method]
     for series in APP_SERIES
     for install_method in INSTALL_METHOD
-    if [series, install_method] != ["trusty", "snap"]  # snaps not supported in trusty
 ]