Do no preload dialpad fragment when opening search through search bar.

If the dialpad is preloaded it steals focus from the search bar. Aside
from this, I believe this change also caused other regressions and makes
the code harder to understand.

Test: tap
PiperOrigin-RevId: 185883795
Change-Id: Idbaca1df50ed02a698eb454cbb9de26a11e35f05
diff --git a/java/com/android/dialer/main/impl/MainSearchController.java b/java/com/android/dialer/main/impl/MainSearchController.java
index e0d42ab..9b734f4 100644
--- a/java/com/android/dialer/main/impl/MainSearchController.java
+++ b/java/com/android/dialer/main/impl/MainSearchController.java
@@ -269,15 +269,12 @@
     mainActivity.getFragmentManager().beginTransaction().remove(getSearchFragment()).commit();
 
     // Clear the dialpad so the phone number isn't persisted between search sessions.
-    getDialpadFragment().clearDialpad();
+    if (getDialpadFragment() != null) {
+      getDialpadFragment().clearDialpad();
+    }
   }
 
-  /**
-   * Returns {@link DialpadFragment}.
-   *
-   * <p>Unless this method is being called for the first time in {@link #openSearch(Optional)} or
-   * {@link #showDialpad(boolean)}, it should never return null.
-   */
+  @Nullable
   protected DialpadFragment getDialpadFragment() {
     return (DialpadFragment)
         mainActivity.getFragmentManager().findFragmentByTag(DIALPAD_FRAGMENT_TAG);
@@ -334,14 +331,6 @@
       transaction.show(getSearchFragment());
     }
 
-    // Add the dialpad fragment but keep it hidden
-    if (getDialpadFragment() == null) {
-      DialpadFragment dialpadFragment = new DialpadFragment();
-      transaction
-          .add(R.id.dialpad_fragment_container, dialpadFragment, DIALPAD_FRAGMENT_TAG)
-          .hide(dialpadFragment);
-    }
-
     transaction.commit();
   }