Address code review feedback: remove unused imports and simplify path construction

Co-authored-by: gkorland <753206+gkorland@users.noreply.github.com>

Author: Copilot

api/analyzers/kotlin/analyzer.py

@@ -1,6 +1,4 @@
-import os
 from pathlib import Path
-import subprocess
 from ...entities import *
 from typing import Optional
 from ..analyzer import AbstractAnalyzer

tests/test_kotlin_analyzer.py

@@ -1,24 +1,14 @@
-import os
 import unittest
 from pathlib import Path
 
 from api import SourceAnalyzer, Graph
 
 class Test_Kotlin_Analyzer(unittest.TestCase):
     def test_analyzer(self):
-        path = Path(__file__).parent
         analyzer = SourceAnalyzer()
 
-        # Get the current file path
-        current_file_path = os.path.abspath(__file__)
-
-        # Get the directory of the current file
-        current_dir = os.path.dirname(current_file_path)
-
-        # Append 'source_files/kotlin' to the current directory
-        path = os.path.join(current_dir, 'source_files')
-        path = os.path.join(path, 'kotlin')
-        path = str(path)
+        # Get the path to the test Kotlin source files
+        path = str(Path(__file__).parent / 'source_files' / 'kotlin')
 
         g = Graph("kotlin")
         analyzer.analyze_local_folder(path, g)