android, make the removals idempotent too.

tasks/workstation/linux/software/android.yml

@@ -258,9 +258,9 @@
       echo "INSTALLED"
     fi
   loop: "{{ android_downloads_required }}"
+  register: install_required
+  changed_when: "'INSTALLED' in install_required.stdout"
   become_user: "{{ user }}"
-  register: check_required
-  changed_when: "'INSTALLED' in check_required.stdout"
   when: coding == true
 
 # Add more versions for testing across all the important platforms.
@@ -271,25 +271,36 @@
       echo "INSTALLED"
     fi
   loop: "{{ android_downloads_additional }}"
+  register: install_additional
+  changed_when: "'INSTALLED' in install_additional.stdout"
   become_user: "{{ user }}"
-  register: check_additional
-  changed_when: "'INSTALLED' in check_additional.stdout"
   when: coding == true
     and sdks == true
 
 # Remove extra downloads if system is not meant for full amount of testing.
 - name: Workstation | Linux | Software | Android | Uninstall | Additional Modules
-  shell: "yes | {{ android_sdkmanager2_remove }} '{{ item }}'"
+  shell: |
+    if {{ android_sdkmanager2_list }} | grep -q '{{ item }}'; then
+      yes | {{ android_sdkmanager2_remove }} '{{ item }}'
+      echo "REMOVED"
+    fi
   loop: "{{ android_downloads_additional }}"
+  register: remove_additional
+  changed_when: "'REMOVED' in remove_additional.stdout"
   become_user: "{{ user }}"
   when: coding != true
      or sdks != true
-  ignore_errors: yes
 
 # Remove any versions which used to be part of this script and no longer used.
 - name: Workstation | Linux | Software | Android | Uninstall | Unused Modules
-  shell: "yes | {{ android_sdkmanager2_remove }} '{{ item }}'"
+  shell: |
+    if {{ android_sdkmanager2_list }} | grep -q '{{ item }}'; then
+      yes | {{ android_sdkmanager2_remove }} '{{ item }}'
+      echo "REMOVED"
+    fi
   loop: "{{ android_downloads_unused }}"
+  register: remove_unused
+  changed_when: "'REMOVED' in remove_unused.stdout"
   become_user: "{{ user }}"
   when: coding == true