For #6577 - Remove the `total_uri_count` Glean StringMetricType

This was added as a duplicate to an already existing `total_uri_count`
CounterMetricType in #4456.

app/metrics.yaml

@@ -362,20 +362,6 @@ metrics:
     notification_emails:
       - fenix-core@mozilla.com
     expires: "2020-09-01"
-  total_uri_count:
-    type: string
-    lifetime: application
-    description: >
-      A counter of URIs visited by the user in the current session, including page reloads. This does not include background page requests and URIs from embedded pages or private browsing.
-    send_in_pings:
-      - metrics
-    bugs:
-      - https://github.com/mozilla-mobile/fenix/issues/4456
-    data_reviews:
-      - https://github.com/mozilla-mobile/fenix/pull/6003
-    notification_emails:
-      - fenix-core@mozilla.com
-    expires: "2020-09-01"
   toolbar_position:
     type: string
     lifetime: application

app/src/main/java/org/mozilla/fenix/browser/UriOpenedObserver.kt

@@ -14,7 +14,6 @@ import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.metrics.MetricController
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.metrics
-import org.mozilla.fenix.ext.settings
 
 class UriOpenedObserver(
     private val context: Context,
@@ -62,7 +61,6 @@ class UriOpenedObserver(
             } else if (urlLoading != null && !session.private && temporaryFix.shouldSendEvent(session.url)) {
                 temporaryFix.eventSentFor = session.url
                 metrics.track(Event.UriOpened)
-                context.settings().totalUriCount += 1
             }
         }
     }

app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt

@@ -532,8 +532,6 @@ class GleanMetricsService(private val context: Context) : MetricsService {
         gleanSetStartupMetrics = MainScope().launch {
             setStartupMetrics()
         }
-
-        context.settings().totalUriCount = 0
     }
 
     internal fun setStartupMetrics() {
@@ -544,7 +542,6 @@ class GleanMetricsService(private val context: Context) : MetricsService {
             }
             mozillaProducts.set(MozillaProductDetector.getInstalledMozillaProducts(context))
             adjustCampaign.set(context.settings().adjustCampaignId)
-            totalUriCount.set(context.settings().totalUriCount.toString())
             toolbarPosition.set(
                 if (context.settings().shouldUseBottomToolbar) {
                     Event.ToolbarPositionChanged.Position.BOTTOM.name

app/src/main/java/org/mozilla/fenix/utils/Settings.kt

@@ -410,11 +410,6 @@ class Settings private constructor(
         default = 0
     )
 
-    var totalUriCount by longPreference(
-        appContext.getPreferenceKey(R.string.pref_key_total_uri),
-        default = 0
-    )
-
     fun addSearchWidgetInstalled(count: Int) {
         val key = appContext.getPreferenceKey(R.string.pref_key_search_widget_installed)
         val newValue = preferences.getInt(key, 0) + count

app/src/main/res/values/preference_keys.xml

@@ -135,7 +135,5 @@
     <string name="pref_key_adjust_campaign" translatable="false">pref_key_adjust_campaign</string>
     <string name="pref_key_testing_stage" translatable="false">pref_key_testing_stage</string>
 
-    <string name="pref_key_total_uri" translatable="false">pref_key_total_uri</string>
-
     <string name="pref_key_encryption_key_generated" translatable="false">pref_key_encryption_key_generated</string>
 </resources>