Cleanup references to semantic convetion 'component' attribute (#1555)

Author: mariojonke

docs/examples/auto-instrumentation/README.rst

@@ -124,7 +124,6 @@ similar to the following example:
             "status_code": "OK"
         },
         "attributes": {
-            "component": "http",
             "http.method": "GET",
             "http.server_name": "127.0.0.1",
             "http.scheme": "http",
@@ -181,7 +180,6 @@ similar to the following example:
             "status_code": "OK"
         },
         "attributes": {
-            "component": "http",
             "http.method": "GET",
             "http.server_name": "127.0.0.1",
             "http.scheme": "http",

docs/examples/django/README.rst

@@ -80,7 +80,6 @@ output similar to this one:
             "status_code": "OK"
         },
         "attributes": {
-            "component": "http",
             "http.method": "GET",
             "http.server_name": "localhost",
             "http.scheme": "http",

opentelemetry-sdk/tests/trace/test_trace.py

@@ -549,7 +549,6 @@ def test_attributes(self):
         with self.tracer.start_as_current_span("root") as root:
             root.set_attributes(
                 {
-                    "component": "http",
                     "http.method": "GET",
                     "http.url": "https://example.com:779/path/12/?q=d#123",
                 }
@@ -570,8 +569,7 @@ def test_attributes(self):
             list_of_numerics = [123, 314, 0]
             root.set_attribute("list-of-numerics", list_of_numerics)
 
-            self.assertEqual(len(root.attributes), 10)
-            self.assertEqual(root.attributes["component"], "http")
+            self.assertEqual(len(root.attributes), 9)
             self.assertEqual(root.attributes["http.method"], "GET")
             self.assertEqual(
                 root.attributes["http.url"],
@@ -900,7 +898,7 @@ def test_ended_span(self):
         self.assertEqual(end_time0, root.end_time)
 
         with self.assertLogs(level=WARNING):
-            root.set_attribute("component", "http")
+            root.set_attribute("http.method", "GET")
         self.assertEqual(len(root.attributes), 0)
 
         with self.assertLogs(level=WARNING):