[Wisp] retire Wisp1

Summary:
Delete all Wisp1 related code based on the fact that Wisp2 is more
powerful and stable than Wisp1.

Revert listed file changes and keep consistent with openjdk:

- AbstractSelectableChannel
- AbstractSelector
- ScheduledThreadPoolExecutor
- ThreadPoolExecutor
- EPollSelectorProvider
Remove features:

- SleepSelector
- WispSelector
- ThreadAsWisp with wisp.properties
Remove tests:

Wisp2 do not have engine selector anymore:
 - ClearEventTest
 - SelectorLazyCreateTest
 - WispEngineCriticalSectionTest
 - WispSelectorUnixSocketLeakTest
 - EngineSelectorTest
 - SelectorRebuildTest
 - LockUninterruptiblyTest
Outdated features:
 - WorkerContainerTest
 - EnableSleepSelectorTest
 - SelectorTest(WispSelector)
 - SleepSelectorTest
 - SubmittedTaskLimitTest
 - ThreadAsWispTest
Wisp1 unique test:
 - YieldTest
 - WaitNotifyTest
Duplicate:
 - ShutdownAndCreateNewTask
 - ShutdownTest
Non-trivial changes:

- Remove eventloop mechanism (should use juc instead)
- WispTask.engine become volatile
- WispTask.staus is only used to test alive

Test Plan: run all jtreg

Reviewers: sanhong.lsh, yunyao.zxl, shiyue.xw, lei.yul

Issue: https://aone.alibaba-inc.com/task/24108494

CR: https://code.aone.alibaba-inc.com/xcode/jdk11/codereview/2241339

src/hotspot/share/prims/jvm.cpp

@@ -403,9 +403,8 @@ JVM_ENTRY(jobject, JVM_InitProperties(JNIEnv *env, jobject properties))
   {
     if (UseWisp2) {
       PUTPROP(props, "com.alibaba.wisp.transparentWispSwitch", "true");
-      PUTPROP(props, "com.alibaba.wisp.enableThreadAsWisp", "true");
-      PUTPROP(props, "com.alibaba.wisp.version", "2");
       if (Arguments::get_property("com.alibaba.wisp.allThreadAsWisp") == NULL) {
+        PUTPROP(props, "com.alibaba.wisp.enableThreadAsWisp", "true");
         PUTPROP(props, "com.alibaba.wisp.allThreadAsWisp", "true");
       }
     }

src/java.base/linux/classes/sun/nio/ch/EPollSelectorProvider.java

@@ -25,10 +25,6 @@
 
 package sun.nio.ch;
 
-import com.alibaba.wisp.engine.WispEngine;
-import com.alibaba.wisp.util.io.SleepSelector;
-import jdk.internal.misc.SharedSecrets;
-
 import java.io.IOException;
 import java.nio.channels.*;
 import java.nio.channels.spi.*;
@@ -37,15 +33,6 @@ public class EPollSelectorProvider
     extends SelectorProviderImpl
 {
     public AbstractSelector openSelector() throws IOException {
-        AbstractSelector sel = new EPollSelectorImpl(this);
-        if (WispEngine.enableThreadAsWisp() &&
-                SharedSecrets.getWispEngineAccess().ifSpinSelector()) {
-            sel = new SleepSelector(sel);
-        }
-        return sel;
-    }
-
-    public AbstractSelector openSelector0() throws IOException {
         return new EPollSelectorImpl(this);
     }