refactor: get_ostree_data.sh use env shebang - remove from .sanity*

Use the `#!/usr/bin/env bash` shebang which is ansible-test friendly.
This means we can remove get_ostree_data.sh from the .sanity* files.
This also means we can remove the .sanity* files if we do not need
them otherwise.

Rename `pth` to `path` in honor of nscott

Signed-off-by: Rich Megginson <rmeggins@redhat.com>

.ostree/get_ostree_data.sh

@@ -28,7 +28,7 @@ if [ "$pkgtype" = testing ]; then
 fi
 
 get_rolepath() {
-    local ostree_dir role rolesdir roles_parent_dir coll_path pth
+    local ostree_dir role rolesdir roles_parent_dir coll_path path
     ostree_dir="$1"
     role="$2"
     roles_parent_dir="$(dirname "$(dirname "$ostree_dir")")"
@@ -51,8 +51,8 @@ get_rolepath() {
         coll_path="${ANSIBLE_COLLECTIONS_PATHS:-}"
     fi
     if [ -n "${coll_path}" ]; then
-        for pth in ${coll_path//:/ }; do
-            for rolesdir in "$pth"/ansible_collections/*/*_system_roles/roles/"$role"/.ostree; do
+        for path in ${coll_path//:/ }; do
+            for rolesdir in "$path"/ansible_collections/*/*_system_roles/roles/"$role"/.ostree; do
                 if [ -d "$rolesdir" ]; then
                     echo "$rolesdir"
                     return 0