Remove downstream NQE monitoring

This is no longer used and can be removed.

(cherry picked from commit e7918bac25137dcd0771e1df0ebeaf6bcd753603)

Bug: 974298
Change-Id: I485dffcc549e202bde603af75613e0803bb12f8a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1660701
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Commit-Queue: Michael Thiessen <mthiesse@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#669353}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1661764
Reviewed-by: Michael Thiessen <mthiesse@chromium.org>
Cr-Commit-Position: refs/branch-heads/3770@{#1023}
Cr-Branched-From: a9eee1c7c727ef42a15d86e9fa7b77ff0e63840a-refs/heads/master@{#652427}

diff --git a/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java b/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
index 0bd077f..285e862 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/AppHooks.java

@@ -456,11 +456,6 @@
     }
 
     /**
-     * Starts monitoring network quality. Must be called after native initialization is complete.
-     */
-    public void startMonitoringNetworkQuality() {}
-
-    /**
      * Starts the observer for listening to system settings changes. Must be called on
      * ChromeActivity initialization.
      */

diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
index abccec5..9d00379 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ChromeActivity.java

@@ -1499,7 +1499,6 @@
             initializeBottomSheet(
                     !ChromeFeatureList.isEnabled(ChromeFeatureList.CONTEXTUAL_SUGGESTIONS_BUTTON));
         }
-        AppHooks.get().startMonitoringNetworkQuality();
         AppHooks.get().startSystemSettingsObserver();
     }