Remove noisy PIR pixels (#3459)

Task/Issue URL:
https://app.asana.com/0/1203581873609357/1207850832493111/f
Tech Design URL:
CC:

**Description**:
V simple, removes a couple of pixels that fired a lot and one user in
particular has not been happy about

**Steps to test this PR**:
1. Check PIR still works

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**Definition of Done**:

* [ ] Does this PR satisfy our [Definition of
Done](https://app.asana.com/0/1202500774821704/1207634633537039/f)?

---
###### Internal references:
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Checklist](https://app.asana.com/0/1202500774821704/1203764234894239/f)
[Software Engineering
Expectations](https://app.asana.com/0/59792373528535/199064865822552)
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Documentation](https://app.asana.com/0/1202500774821704/1204012835277482/f)

DuckDuckGo/DBP/DataBrokerProtectionFeatureGatekeeper.swift

@@ -118,12 +118,10 @@ private extension DefaultDataBrokerProtectionFeatureGatekeeper {
 
     func firePrerequisitePixelsAndLogIfNecessary(hasEntitlements: Bool, isAuthenticatedResult: Bool) {
         if !hasEntitlements {
-            pixelHandler.fire(.gatekeeperEntitlementsInvalid)
             Logger.dataBrokerProtection.error("DBP feature Gatekeeper: Entitlement check failed")
         }
 
         if !isAuthenticatedResult {
-            pixelHandler.fire(.gatekeeperNotAuthenticated)
             Logger.dataBrokerProtection.error("DBP feature Gatekeeper: Authentication check failed")
         }
     }

DuckDuckGo/DBP/DataBrokerProtectionPixelsHandler.swift

@@ -105,8 +105,6 @@ public class DataBrokerProtectionPixelsHandler: EventMapping<DataBrokerProtectio
                     .globalMetricsMonthlyStats,
                     .dataBrokerMetricsWeeklyStats,
                     .dataBrokerMetricsMonthlyStats,
-                    .gatekeeperNotAuthenticated,
-                    .gatekeeperEntitlementsInvalid,
                     .invalidPayload,
                     .pixelTest,
                     .customDataBrokerStatsOptoutSubmit,

LocalPackages/DataBrokerProtection/Sources/DataBrokerProtection/Pixels/DataBrokerProtectionPixels.swift

@@ -206,10 +206,6 @@ public enum DataBrokerProtectionPixels {
     case dataBrokerMetricsWeeklyStats(dataBrokerURL: String, profilesFound: Int, optOutsInProgress: Int, successfulOptOuts: Int, failedOptOuts: Int, durationOfFirstOptOut: Int, numberOfNewRecordsFound: Int, numberOfReappereances: Int)
     case dataBrokerMetricsMonthlyStats(dataBrokerURL: String, profilesFound: Int, optOutsInProgress: Int, successfulOptOuts: Int, failedOptOuts: Int, durationOfFirstOptOut: Int, numberOfNewRecordsFound: Int, numberOfReappereances: Int)
 
-    // Feature Gatekeeper
-    case gatekeeperNotAuthenticated
-    case gatekeeperEntitlementsInvalid
-
     // Custom stats
     case customDataBrokerStatsOptoutSubmit(dataBrokerName: String, optOutSubmitSuccessRate: Double)
     case customGlobalStatsOptoutSubmit(optOutSubmitSuccessRate: Double)
@@ -338,10 +334,6 @@ extension DataBrokerProtectionPixels: PixelKitEvent {
         case .dataBrokerMetricsWeeklyStats: return "m_mac_dbp_databroker_weekly_stats"
         case .dataBrokerMetricsMonthlyStats: return "m_mac_dbp_databroker_monthly_stats"
 
-            // Feature Gatekeeper
-        case .gatekeeperNotAuthenticated: return "m_mac_dbp_gatekeeper_not_authenticated"
-        case .gatekeeperEntitlementsInvalid: return "m_mac_dbp_gatekeeper_entitlements_invalid"
-
             // Configuration
         case .invalidPayload(let configuration): return "m_mac_dbp_\(configuration.rawValue)_invalid_payload".lowercased()
         case .errorLoadingCachedConfig: return "m_mac_dbp_configuration_error_loading_cached_config"
@@ -460,8 +452,6 @@ extension DataBrokerProtectionPixels: PixelKitEvent {
                 .secureVaultKeyStoreReadError,
                 .secureVaultKeyStoreUpdateError,
                 .secureVaultError,
-                .gatekeeperNotAuthenticated,
-                .gatekeeperEntitlementsInvalid,
                 .invalidPayload,
                 .pixelTest,
                 .failedToParsePrivacyConfig:
@@ -623,8 +613,6 @@ public class DataBrokerProtectionPixelsHandler: EventMapping<DataBrokerProtectio
                     .globalMetricsMonthlyStats,
                     .dataBrokerMetricsWeeklyStats,
                     .dataBrokerMetricsMonthlyStats,
-                    .gatekeeperNotAuthenticated,
-                    .gatekeeperEntitlementsInvalid,
                     .invalidPayload,
                     .pixelTest,
                     .customDataBrokerStatsOptoutSubmit,