Remove vscode version checks

[pokey]

Our policy is to support VSCode versions up to a year old. Thus, we bumped our VSCode dependency version in #2273. We can take advantage of this step to remove the following:

• cursorless/packages/cursorless-vscode/src/ide/vscode/notebook/notebook.ts

  Line 8 in de37ebf

  return semver.lt(version, "1.68.0");

  (and the legacy code that uses this check)

• cursorless/packages/cursorless-vscode/src/ide/vscode/VscodeFocusEditor.ts

  Line 65 in de37ebf

  if (semver.lt(version, "1.67.0")) {

• cursorless/packages/cursorless-vscode/package.json

  Lines 49 to 74 in de37ebf

  	"onView:cursorless.scopes",
  	"onCommand:cursorless.command",
  	"onCommand:cursorless.internal.updateCheatsheetDefaults",
  	"onCommand:cursorless.private.logQuickActions",
  	"onCommand:cursorless.keyboard.escape",
  	"onCommand:cursorless.keyboard.modal.modeOff",
  	"onCommand:cursorless.keyboard.modal.modeOn",
  	"onCommand:cursorless.keyboard.modal.modeToggle",
  	"onCommand:cursorless.keyboard.targeted.clearTarget",
  	"onCommand:cursorless.keyboard.targeted.runActionOnTarget",
  	"onCommand:cursorless.keyboard.targeted.targetHat",
  	"onCommand:cursorless.keyboard.targeted.targetScope",
  	"onCommand:cursorless.keyboard.targeted.targetSelection",
  	"onCommand:cursorless.pauseRecording",
  	"onCommand:cursorless.recomputeDecorationStyles",
  	"onCommand:cursorless.recordTestCase",
  	"onCommand:cursorless.recordOneTestCaseThenPause",
  	"onCommand:cursorless.resumeRecording",
  	"onCommand:cursorless.showCheatsheet",
  	"onCommand:cursorless.showDocumentation",
  	"onCommand:cursorless.showQuickPick",
  	"onCommand:cursorless.takeSnapshot",
  	"onCommand:cursorless.toggleDecorations",
  	"onCommand:cursorless.showScopeVisualizer",
  	"onCommand:cursorless.hideScopeVisualizer",
  	"onCommand:cursorless.analyzeCommandHistory"

  (and the code in meta-updater that generates them)