Revert "[VM/dartdev] Switch dartdev to use an AOT runtime."

This reverts commit 5399dbf6f6.

Reason for revert : Flutter rolls are failing

TEST=ci

Change-Id: I76fede849705514496adbc2ab7f6c262de4103ca
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/439661
Reviewed-by: Jason Simmons <jsimmons@google.com>
Commit-Queue: Siva Annamalai <asiva@google.com>

tools/task_kill.py

@@ -25,8 +25,7 @@ EXECUTABLE_NAMES = {
     'win32': {
         'chrome': 'chrome.exe',
         'crashpad_handler': 'crashpad_handler.exe',
-        'dart': 'dart.exe',\
-        'dart_product': 'dart_product.exe',
+        'dart': 'dart.exe',
         'dartaotruntime': 'dartaotruntime.exe',
         'dartaotruntime_product': 'dartaotruntime_product.exe',
         'firefox': 'firefox.exe',
@@ -39,7 +38,6 @@ EXECUTABLE_NAMES = {
     'linux': {
         'chrome': 'chrome',
         'dart': 'dart',
-        'dart_product': 'dart_product',
         'dartaotruntime': 'dartaotruntime',
         'dartaotruntime_product': 'dartaotruntime_product',
         'firefox': 'firefox',
@@ -51,7 +49,6 @@ EXECUTABLE_NAMES = {
         'chrome': 'Chrome',
         'chrome_helper': 'Chrome Helper',
         'dart': 'dart',
-        'dart_product': 'dart_product',
         'dartaotruntime': 'dartaotruntime',
         'dartaotruntime_product': 'dartaotruntime_product',
         'firefox': 'firefox',