Remove pkg resources (#2871)

opentelemetry-instrumentation/tests/test_distro.py

@@ -15,10 +15,9 @@
 
 from unittest import TestCase
 
-from pkg_resources import EntryPoint
-
 from opentelemetry.instrumentation.distro import BaseDistro
 from opentelemetry.instrumentation.instrumentor import BaseInstrumentor
+from opentelemetry.util._importlib_metadata import EntryPoint
 
 
 class MockInstrumetor(BaseInstrumentor):
@@ -33,11 +32,13 @@ class MockInstrumetor(BaseInstrumentor):
 
 
 class MockEntryPoint(EntryPoint):
-    def __init__(self, obj):  # pylint: disable=super-init-not-called
-        self._obj = obj
+    def __init__(
+        self, name, value, group
+    ):  # pylint: disable=super-init-not-called
+        pass
 
     def load(self, *args, **kwargs):  # pylint: disable=signature-differs
-        return self._obj
+        return MockInstrumetor
 
 
 class MockDistro(BaseDistro):
@@ -51,7 +52,11 @@ class TestDistro(TestCase):
         distro = MockDistro()
 
         instrumentor = MockInstrumetor()
-        entry_point = MockEntryPoint(MockInstrumetor)
+        entry_point = MockEntryPoint(
+            "MockInstrumetor",
+            value="opentelemetry",
+            group="opentelemetry_distro",
+        )
 
         self.assertFalse(instrumentor._is_instrumented_by_opentelemetry)
         distro.load_instrumentor(entry_point)