Drop fossil docs refs to 'read_streaming'/'execute_streaming_sql'. (#3276)

Closes #3267.

Author: tseaver

docs/spanner-session-implicit-txn-usage.rst

@@ -22,28 +22,10 @@ fails if the result set is too large,
     for row in result.rows:
         print(row)
 
-
-Read Streaming Table Data
--------------------------
-
-Read data for selected rows from a table in the session's database.  Calls
-the ``StreamingRead`` API, which returns partial result sets.
-:meth:`Session.streaming_read` coalesces these partial result sets as its
-result object's rows are iterated.
-
-.. code:: python
-
-    result = session.read_streaming(
-        table='table-name', columns=['first_name', 'last_name', 'age'],
-        key_set=VERY_LONG_LIST_OF_KEYS)
-
-    for row in result.rows:
-        print(row)
-
 .. note::
 
    If streaming a chunk fails due to a "resumable" error,
-   :meth:`Session.read_streaming` retries the ``StreamingRead`` API reqeust,
+   :meth:`Session.read` retries the ``StreamingRead`` API reqeust,
    passing the ``resume_token`` from the last partial result streamed.
 
 
@@ -66,26 +48,6 @@ fails if the result set is too large,
         print(row)
 
 
-Execute a Streaming SQL Select Statement
-----------------------------------------
-
-Read data a query against tables in the session's database.  Calls
-the ``ExecuteStreamingSql`` API, which returns partial result sets.
-:meth:`Session.execute_streaming_sql` coalesces these partial result sets as
-its result object's rows are iterated.
-
-.. code:: python
-
-    QUERY = (
-        'SELECT e.first_name, e.last_name, p.telephone '
-        'FROM employees as e, phones as p '
-        'WHERE p.employee_id == e.employee_id')
-    result = session.execute_streaming_sql(QUERY)
-
-    for row in result.rows:
-        print(row)
-
-
 Next Step
 ---------
 

docs/spanner-snapshot-usage.rst

@@ -52,28 +52,10 @@ fails if the result set is too large,
     for row in result.rows:
         print(row)
 
-
-Read Streaming Table Data
--------------------------
-
-Read data for selected rows from a table in the session's database.  Calls
-the ``StreamingRead`` API, which returns partial result sets.
-:meth:`Session.streaming_read` coalesces these partial result sets as its
-result object's rows are iterated.
-
-.. code:: python
-
-    result = snapshot.read_streaming(
-        table='table-name', columns=['first_name', 'last_name', 'age'],
-        key_set=VERY_LONG_LIST_OF_KEYS)
-
-    for row in result.rows:
-        print(row)
-
 .. note::
 
    If streaming a chunk fails due to a "resumable" error,
-   :meth:`Session.read_streaming` retries the ``StreamingRead`` API reqeust,
+   :meth:`Session.read` retries the ``StreamingRead`` API reqeust,
    passing the ``resume_token`` from the last partial result streamed.
 
 
@@ -96,26 +78,6 @@ fails if the result set is too large,
         print(row)
 
 
-Execute a Streaming SQL Select Statement
-----------------------------------------
-
-Read data a query against tables in the session's database.  Calls
-the ``ExecuteStreamingSql`` API, which returns partial result sets.
-:meth:`Session.execute_streaming_sql` coalesces these partial result sets as
-its result object's rows are iterated.
-
-.. code:: python
-
-    QUERY = (
-        'SELECT e.first_name, e.last_name, p.telephone '
-        'FROM employees as e, phones as p '
-        'WHERE p.employee_id == e.employee_id')
-    result = snapshot.execute_streaming_sql(QUERY)
-
-    for row in result.rows:
-        print(row)
-
-
 Next Step
 ---------
 

docs/spanner-transaction-usage.rst

@@ -32,28 +32,10 @@ fails if the result set is too large,
     for row in result.rows:
         print(row)
 
-
-Read Streaming Table Data
--------------------------
-
-Read data for selected rows from a table in the session's database.  Calls
-the ``StreamingRead`` API, which returns partial result sets.
-:meth:`Session.streaming_read` coalesces these partial result sets as its
-result object's rows are iterated.
-
-.. code:: python
-
-    result = transaction.read_streaming(
-        table='table-name', columns=['first_name', 'last_name', 'age'],
-        key_set=VERY_LONG_LIST_OF_KEYS)
-
-    for row in result.rows:
-        print(row)
-
 .. note::
 
    If streaming a chunk fails due to a "resumable" error,
-   :meth:`Session.read_streaming` retries the ``StreamingRead`` API reqeust,
+   :meth:`Session.read` retries the ``StreamingRead`` API reqeust,
    passing the ``resume_token`` from the last partial result streamed.
 
 
@@ -76,26 +58,6 @@ fails if the result set is too large,
         print(row)
 
 
-Execute a Streaming SQL Select Statement
-----------------------------------------
-
-Read data a query against tables in the session's database.  Calls
-the ``ExecuteStreamingSql`` API, which returns partial result sets.
-:meth:`Session.execute_streaming_sql` coalesces these partial result sets as
-its result object's rows are iterated.
-
-.. code:: python
-
-    QUERY = (
-        'SELECT e.first_name, e.last_name, p.telephone '
-        'FROM employees as e, phones as p '
-        'WHERE p.employee_id == e.employee_id')
-    result = transaction.execute_streaming_sql(QUERY)
-
-    for row in result.rows:
-        print(row)
-
-
 Insert records using a Transaction
 ----------------------------------