Fix 1password role on Windows

When 1password is already installed and the installer is invoked, it
hangs because it launches the GUI and never returns.

roles/1password/tasks/Windows.yaml

@@ -11,36 +11,21 @@
     path: '{{app_exe}}'
   register: app_stat
 
-- name: get installed version
-  when: app_stat.stat.exists == True
-  win_command: '{{app_exe}} --version'
-  register: app_version
-  changed_when: false
-
-- when: app_stat.stat.exists == True
-  set_fact:
-    installed_version: '{{app_version.stdout.strip()}}'
-
 - name: download latest installer
+  when: not app_stat.stat.exists
   win_get_url:
     url: https://downloads.1password.com/win/1PasswordSetup-latest.exe
     dest: '{{installer_exe}}'
 
-- name: get installer version
-  win_shell: |
-    (Get-ItemProperty {{installer_exe}}).VersionInfo.ProductVersion
-  register: installer_product_version
-  changed_when: false
-
-# FIXME: The [5:] is to account for a mystery "\e[6 q" prefix, not sure if this
-# is consistent across machines or some other oddity.
-- set_fact:
-    installer_version: '{{installer_product_version.stdout.strip()[5:]}}'
-
 - name: run installer
-  when: installed_version is not defined or installed_version != installer_version
+  when: not app_stat.stat.exists
   win_command: '{{installer_exe}}'
 
+- name: remove installer
+  win_file:
+    path: '{{installer_exe}}'
+    state: absent
+
 - name: create start menu shortcut
   win_shortcut:
     src: '{{app_exe}}'