[EC-400] Code clean up Device Verification (#2601)

* EC-400 Clean up code regarding Unknown Device Verification

* EC-400 Fix formatting

util/SqliteMigrations/Migrations/20230118212950_RemoveDeviceUnknownVerification.cs

@@ -0,0 +1,25 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Bit.SqliteMigrations.Migrations;
+
+public partial class RemoveDeviceUnknownVerification : Migration
+{
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.DropColumn(
+            name: "UnknownDeviceVerificationEnabled",
+            table: "User");
+    }
+
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.AddColumn<bool>(
+            name: "UnknownDeviceVerificationEnabled",
+            table: "User",
+            type: "INTEGER",
+            nullable: false,
+            defaultValue: false);
+    }
+}

util/SqliteMigrations/Migrations/DatabaseContextModelSnapshot.cs

@@ -1287,9 +1287,6 @@ namespace Bit.SqliteMigrations.Migrations
                         .HasMaxLength(32)
                         .HasColumnType("TEXT");
 
-                    b.Property<bool>("UnknownDeviceVerificationEnabled")
-                        .HasColumnType("INTEGER");
-
                     b.Property<bool>("UsesKeyConnector")
                         .HasColumnType("INTEGER");