Revert of Disable BottomSheetTest on pre-Lollipop MR1

chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java

Index: chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java
diff --git a/chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java b/chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java
index 01df4e9eacc8c6ead5693b3c0f084270858b0923..575d3e246ef4a5df84701f4dd3d1e98665cbd2e7 100644
--- a/chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java
+++ b/chrome/test/android/javatests/src/org/chromium/chrome/test/BottomSheetTestCaseBase.java
@@ -6,12 +6,10 @@
 
 import static org.chromium.chrome.test.util.ChromeRestriction.RESTRICTION_TYPE_PHONE;
 
-import android.os.Build;
 import android.support.v7.widget.RecyclerView;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.CommandLineFlags;
-import org.chromium.base.test.util.MinAndroidSdkLevel;
 import org.chromium.base.test.util.Restriction;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
@@ -25,7 +23,6 @@
  */
 @CommandLineFlags.Add({"enable-features=ChromeHome"})
 @Restriction(RESTRICTION_TYPE_PHONE) // ChromeHome is only enabled on phones
-@MinAndroidSdkLevel(Build.VERSION_CODES.LOLLIPOP_MR1)
 public abstract class BottomSheetTestCaseBase extends ChromeTabbedActivityTestBase {
     /** A handle to the bottom sheet. */
     protected BottomSheet mBottomSheet;