Revert null check on dialpadHint

This is caused by apps modifying dialer resources.

TEST=TAP
Bug: 79441501
Test: TAP
PiperOrigin-RevId: 196175830
Change-Id: Ia42e8debe66adbaa2e4e7bdfea7bafe1ef7372bf
diff --git a/java/com/android/dialer/configprovider/SharedPrefConfigProvider.java b/java/com/android/dialer/configprovider/SharedPrefConfigProvider.java
index 54e9c9a..c68312f 100644
--- a/java/com/android/dialer/configprovider/SharedPrefConfigProvider.java
+++ b/java/com/android/dialer/configprovider/SharedPrefConfigProvider.java
@@ -102,6 +102,10 @@
     sharedPreferences.edit().putLong(PREF_PREFIX + key, value).apply();
   }
 
+  public void putString(String key, String value) {
+    sharedPreferences.edit().putString(PREF_PREFIX + key, value).apply();
+  }
+
   @Override
   public String getString(String key, String defaultValue) {
     // Reading shared prefs on the main thread is generally safe since a single instance is cached.
diff --git a/java/com/android/dialer/dialpadview/DialpadFragment.java b/java/com/android/dialer/dialpadview/DialpadFragment.java
index d48870d..8fb7533 100644
--- a/java/com/android/dialer/dialpadview/DialpadFragment.java
+++ b/java/com/android/dialer/dialpadview/DialpadFragment.java
@@ -478,12 +478,7 @@
     }
     digits.setContentDescription(null);
 
-    // TOOD(77908301): Investigate why this is the case
-    // It's not clear why digitsHint would be null when digits is initialized as the time, so adding
-    // a todo to investigate why.
-    if (digitsHint != null) {
-      digitsHint.setVisibility(View.GONE);
-    }
+    digitsHint.setVisibility(View.GONE);
   }
 
   /**