Remove unused temp dir variables that leaked on every invocation

utils_dir, temp_dir, build_dir, and staging_dir were computed at
module level but never referenced. tempfile.mkdtemp() ran
unconditionally on every invocation (including --help and
argument-parse errors), leaking an empty temp directory on disk
each time. Remove all four variables and the now-unused tempfile
import.

package

@@ -5,5 +5,6 @@ LOCATION="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
 CONFIG=${CONFIG:-${LOCATION}/config.json}
 SRC=${SRC:-${LOCATION}/src}
 BUILD_DIR=${BUILD_DIR:-${LOCATION}/build-packages}
+#INSTALL_SCRIPT=${LOCATION}/install.sh
 
 ${LOCATION}/hosted-app-utils/package ${CONFIG} ${SRC} output=${BUILD_DIR} $@

scripts/clientappctl

@@ -1,6 +1,6 @@
 #! /usr/bin/env python3
 
-import sys, os, argparse, json, shutil, tempfile, subprocess, traceback
+import sys, os, argparse, json, shutil, subprocess, traceback
 
 def run_script(script_path: str) -> int:
     """
@@ -97,11 +97,40 @@ def handle_restart(src_path: str, install_path: str):
     return 0
 
 
+def uninstall_app(args: argparse.Namespace, install_path) -> int:
+    """
+    Uninstall application at specified installation directory.
+
+    Args:
+        install_path (str): Path to target installation directory.
+    Returns: 
+        Int
+    """
+
+    rval = 0
+    try:
+
+        # disable application then uninstall
+        disable_path = os.path.join(install_path, 'disable')
+        stop_path    = os.path.join(install_path, 'stop')
+        if os.path.exists(disable_path):
+            subprocess.check_output(disable_path)
+
+        if os.path.exists(stop_path):
+            subprocess.check_output(stop_path)
+        
+        # reset vols, networks
+        subprocess.check_output(['docker', 'compose', '-f', f'{install_path}/docker-compose.yml', 'down', '-v'])
+
+        if os.path.exists(install_path):
+            shutil.rmtree(install_path)
+    except Exception as e:
+        print(f'Exception encountered: {e}')
+        traceback.print_exc()
+        rval = 1
+    return rval
+
 # script constants
-utils_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), os.pardir))
-temp_dir = tempfile.mkdtemp()
-build_dir = os.path.join(temp_dir, 'build')
-staging_dir = os.path.join(temp_dir, 'staging')
 working_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 src_path = os.path.join(working_dir, 'src')
 CONFIG_JSON = os.path.join(working_dir, 'config.json')