Don't remove $WORKSPACE on propsal jobs

These jobs used to run on a long-lived node, and we needed to periodically
clean out the jenkins home dir of workspaces or the disk would fill.  Now
they run on single-use nodes and we don't.  Moreover, removing everything
in the homedir also removes the prepared git repos in v3, which makes the
jobs fail.

Change-Id: I86bc40885abea73bb90aee3998c1938e26f6e1f8

playbooks/legacy/api-site-propose-translation-update/run.yaml

@@ -8,16 +8,6 @@
         path: '{{ ansible_user_dir }}/workspace'
         state: directory
 
-    - shell:
-        cmd: |
-          cd /
-          rm -rf `dirname $WORKSPACE`/*
-          mkdir $WORKSPACE
-          cd $WORKSPACE
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
     - shell:
         cmd: |
           set -x

playbooks/legacy/api-site-upstream-translation-update/run.yaml

@@ -8,16 +8,6 @@
         path: '{{ ansible_user_dir }}/workspace'
         state: directory
 
-    - shell:
-        cmd: |
-          cd /
-          rm -rf `dirname $WORKSPACE`/*
-          mkdir $WORKSPACE
-          cd $WORKSPACE
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
     - shell:
         cmd: |
           set -x

playbooks/legacy/propose-requirements-constraints-master/run.yaml

@@ -8,16 +8,6 @@
         path: '{{ ansible_user_dir }}/workspace'
         state: directory
 
-    - shell:
-        cmd: |
-          cd /
-          rm -rf `dirname $WORKSPACE`/*
-          mkdir $WORKSPACE
-          cd $WORKSPACE
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
     - shell:
         cmd: |
           set -x

playbooks/legacy/propose-translation-update-ocata/run.yaml

@@ -7,16 +7,6 @@
         path: '{{ ansible_user_dir }}/workspace'
         state: directory
 
-    - shell:
-        cmd: |
-          cd /
-          rm -rf `dirname $WORKSPACE`/*
-          mkdir $WORKSPACE
-          cd $WORKSPACE
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
     - shell:
         cmd: |
           set -x

playbooks/legacy/propose-translation-update-pike/run.yaml

@@ -7,16 +7,6 @@
         path: '{{ ansible_user_dir }}/workspace'
         state: directory
 
-    - shell:
-        cmd: |
-          cd /
-          rm -rf `dirname $WORKSPACE`/*
-          mkdir $WORKSPACE
-          cd $WORKSPACE
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
     - shell:
         cmd: |
           set -x

playbooks/legacy/propose-translation-update/run.yaml

@@ -7,16 +7,6 @@
         path: '{{ ansible_user_dir }}/workspace'
         state: directory
 
-    - shell:
-        cmd: |
-          cd /
-          rm -rf `dirname $WORKSPACE`/*
-          mkdir $WORKSPACE
-          cd $WORKSPACE
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
     - shell:
         cmd: |
           set -x

playbooks/legacy/upstream-translation-update/run.yaml

@@ -7,16 +7,6 @@
         path: '{{ ansible_user_dir }}/workspace'
         state: directory
 
-    - shell:
-        cmd: |
-          cd /
-          rm -rf `dirname $WORKSPACE`/*
-          mkdir $WORKSPACE
-          cd $WORKSPACE
-        executable: /bin/bash
-        chdir: '{{ ansible_user_dir }}/workspace'
-      environment: '{{ zuul | zuul_legacy_vars }}'
-
     - shell:
         cmd: |
           set -x