Revert "Disable failing SystemUIGoogleBiometricsScreenshotTests"

This reverts commit 8936b24e9090b47745e9f27eb44943fd80a6c840.

Reason for revert: underlying issue fixed in other CLs of the same topic.

Change-Id: I5f2e9e709646d61e9b7ff6746f517c87640bb26b
diff --git a/packages/SystemUI/TEST_MAPPING b/packages/SystemUI/TEST_MAPPING
index b22195a..f92625b 100644
--- a/packages/SystemUI/TEST_MAPPING
+++ b/packages/SystemUI/TEST_MAPPING
@@ -32,19 +32,18 @@
         }
       ]
     },
-// Disable until can pass: b/259124654
-//    {
-//      // TODO(b/251476085): Consider merging with SystemUIGoogleScreenshotTests (in U+)
-//      "name": "SystemUIGoogleBiometricsScreenshotTests",
-//      "options": [
-//        {
-//          "exclude-annotation": "org.junit.Ignore"
-//        },
-//        {
-//          "exclude-annotation": "androidx.test.filters.FlakyTest"
-//        }
-//      ]
-//    },
+    {
+      // TODO(b/251476085): Consider merging with SystemUIGoogleScreenshotTests (in U+)
+      "name": "SystemUIGoogleBiometricsScreenshotTests",
+      "options": [
+        {
+          "exclude-annotation": "org.junit.Ignore"
+        },
+        {
+          "exclude-annotation": "androidx.test.filters.FlakyTest"
+        }
+      ]
+    },
     {
       // Permission indicators
       "name": "CtsPermission4TestCases",