Revert "Recycling already running activities"

This reverts commit 0bc32dcce64b20459ff6f8eff960b217810d59d8.

Reason for revert: Tests are broken, perhaps caused by this one

Change-Id: Ie409f04931a27bd6da616c1e52e279eb07479631
diff --git a/quickstep/tests/src/com/android/quickstep/StartLauncherViaGestureTests.java b/quickstep/tests/src/com/android/quickstep/StartLauncherViaGestureTests.java
index 664958a..0c5b9ad 100644
--- a/quickstep/tests/src/com/android/quickstep/StartLauncherViaGestureTests.java
+++ b/quickstep/tests/src/com/android/quickstep/StartLauncherViaGestureTests.java
@@ -48,9 +48,7 @@
         // b/143488140
         mLauncher.pressHome();
         // Start an activity where the gestures start.
-        if (mLauncher.getRecentTasks().isEmpty()) {
-            startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
-        }
+        startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
     }
 
     private void runTest(String... eventSequence) {
diff --git a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
index ed25cc7..bf093fd 100644
--- a/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
+++ b/quickstep/tests/src/com/android/quickstep/TaplTestsQuickstep.java
@@ -69,16 +69,14 @@
     }
 
     private void startTestApps() throws Exception {
-        if (mLauncher.getRecentTasks().size() < 3) {
-            startAppFast(getAppPackageName());
-            startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
-            startTestActivity(2);
+        startAppFast(getAppPackageName());
+        startAppFast(resolveSystemApp(Intent.CATEGORY_APP_CALCULATOR));
+        startTestActivity(2);
 
-            executeOnLauncher(launcher -> assertTrue(
-                    "Launcher activity is the top activity; expecting another activity to be the "
-                            + "top one",
-                    isInBackground(launcher)));
-        }
+        executeOnLauncher(launcher -> assertTrue(
+                "Launcher activity is the top activity; expecting another activity to be the top "
+                        + "one",
+                isInBackground(launcher)));
     }
 
     @Test