remove unused test

Author: samuelcolvin

instrumentation/opentelemetry-instrumentation-flask/tests/test_programmatic.py

@@ -687,22 +687,6 @@ def test_repeat_custom_request_header_added_in_server_span(self):
         self.assertEqual(span.kind, trace.SpanKind.SERVER)
         self.assertSpanHasAttributes(span, expected)
 
-    def test_repeat_similar_custom_request_header_added_in_server_span(self):
-        headers = [
-            ("Custom-Test-Header-1", "Test Value 1"),
-            ("Custom-Test-Header_1", "Test Value 2"),
-        ]
-        resp = self.client.get("/hello/123", headers=headers)
-        self.assertEqual(200, resp.status_code)
-        span = self.memory_exporter.get_finished_spans()[0]
-        expected = {
-            "http.request.header.custom_test_header_1": (
-                "Test Value 1, Test Value 2",
-            ),
-        }
-        self.assertEqual(span.kind, trace.SpanKind.SERVER)
-        self.assertSpanHasAttributes(span, expected)
-
     def test_custom_request_header_not_added_in_internal_span(self):
         tracer = trace.get_tracer(__name__)
         with tracer.start_as_current_span("test", kind=trace.SpanKind.SERVER):