[misc] Remove vscode artifacts

If I use vscode again at some point and set it up to run jsix nicely
I'll readd.

.vscode/tasks.json

@@ -1,28 +0,0 @@
-{
-    // See https://go.microsoft.com/fwlink/?LinkId=733558
-    // for the documentation about the tasks.json format
-    "version": "0.1.0",
-    "tasks": [
-        {
-            "taskName": "make",
-            "command": "make.bat",
-            "isBuildCommand": true
-        },
-        {
-            "taskName": "clean",
-            "command": "make.bat",
-            "args": [ "clean" ],
-            "isShellCommand": true
-        },
-        {
-            "taskName": "qemu (windowed)",
-            "command": "qemu-win.bat",
-            "showOutput": "never",
-            "isTestCommand": true
-        },
-        {
-            "taskName": "qemu",
-            "command": "qemu.bat"
-        }
-    ]
-}