For #10599 - Removed baseline pings form metrics.yaml

As per documentation, this ping is intended to provide metrics that are managed by the library itself, and not explicitly set by the application or included in the application's metrics.yaml file.

app/metrics.yaml

@@ -111,7 +111,6 @@ events:
       interaction by website scripts that programmatically redirect to a new
       location.
     send_in_pings:
-      - baseline
       - metrics
     bugs:
       - https://github.com/mozilla-mobile/fenix/issues/1301
@@ -122,8 +121,6 @@ events:
     notification_emails:
       - fenix-core@mozilla.com
     expires: "2020-09-01"
-    no_lint:
-      - BASELINE_PING
   preference_toggled:
     type: event
     description: |
@@ -366,7 +363,6 @@ metrics:
       `other` option for the source but it should never enter on this case.
     send_in_pings:
       - metrics
-      - baseline
     bugs:
       - https://github.com/mozilla-mobile/fenix/issues/1158
       - https://github.com/mozilla-mobile/fenix/issues/6556
@@ -377,8 +373,6 @@ metrics:
     notification_emails:
       - fenix-core@mozilla.com
     expires: "2020-09-01"
-    no_lint:
-      - BASELINE_PING
   mozilla_products:
     type: string_list
     lifetime: application
@@ -2043,7 +2037,6 @@ browser.search:
       Records counts of SERP pages with adverts displayed.
       The key format is ‘<provider-name>’.
     send_in_pings:
-      - baseline
       - metrics
     bugs:
       - https://github.com/mozilla-mobile/fenix/issues/6558
@@ -2052,15 +2045,12 @@ browser.search:
     notification_emails:
       - fenix-core@mozilla.com
     expires: "2020-09-01"
-    # TODO: https://github.com/mozilla-mobile/fenix/issues/10599
-    no_lint: [BASELINE_PING]
   ad_clicks:
     type: labeled_counter
     description: |
       Records clicks of adverts on SERP pages.
       The key format is ‘<provider-name>’.
     send_in_pings:
-      - baseline
       - metrics
     bugs:
       - https://github.com/mozilla-mobile/fenix/issues/6558
@@ -2069,14 +2059,11 @@ browser.search:
     notification_emails:
       - fenix-core@mozilla.com
     expires: "2020-09-01"
-    # TODO: https://github.com/mozilla-mobile/fenix/issues/10599
-    no_lint: [BASELINE_PING]
   in_content:
     type: labeled_counter
     description: |
       Records the type of interaction a user has on SERP pages.
     send_in_pings:
-      - baseline
       - metrics
     bugs:
       - https://github.com/mozilla-mobile/fenix/issues/6557
@@ -2085,8 +2072,6 @@ browser.search:
     notification_emails:
       - fenix-core@mozilla.com
     expires: "2020-09-01"
-    # TODO: https://github.com/mozilla-mobile/fenix/issues/10599
-    no_lint: [BASELINE_PING]
 
 addons:
   open_addons_in_settings: