EF parameters removed in 8.0 (#381)

Co-authored-by: Shay Rojansky <roji@roji.org>

Author: apetukhov

conceptual/Npgsql/connection-string-parameters.md

@@ -90,10 +90,8 @@ Search Path              | Sets the schema search path.
 Client Encoding          | Gets or sets the client_encoding parameter.                                                          | PGCLIENTENCODING, UTF8
 Encoding                 | Gets or sets the .NET encoding that will be used to encode/decode PostgreSQL string data.            | UTF8
 Timezone                 | Gets or sets the session timezone.                                                                   | PGTZ
-EF Template Database     | The database template to specify when creating a database in Entity Framework.                       | template1
-EF Admin Database        | The database admin to specify when creating and dropping a database in Entity Framework.             | template1
 Load Table Composites    | Load table composite type definitions, and not just free-standing composite types.                   | false
-Array Nullability Mode   | Configure the way arrays of value types are returned when requested as object instances. Possible values are: `Never` (arrays of value types are always returned as non-nullable arrays), `Always` (arrays of value types are always returned as nullable arrays) and `PerInstance` (the type of array that gets returned is determined at runtime).             | Never
+Array Nullability Mode   | Configure the way arrays of value types are returned when requested as object instances. Possible values are: `Never` (arrays of value types are always returned as non-nullable arrays), `Always` (arrays of value types are always returned as nullable arrays) and `PerInstance` (the type of array that gets returned is determined at runtime). | Never
 
 <sup id="misc_sup_1">1</sup>The `Options` connection string parameter is essentially the string of command line options that get passed to the [`postgres`](https://www.postgresql.org/docs/current/app-postgres.html) program when the process is started.
 It is most commonly used to set named run-time parameters via the `-c` option but other options can be used too (although not all of them make sense in that context).
@@ -106,11 +104,13 @@ Parameter                 | Description
 ------------------------- | ------------------------------------------------------------------------------------------------- | -------
 Server Compatibility Mode | A compatibility mode for special PostgreSQL server types. Currently "Redshift" is supported, as well as "NoTypeLoading", which will bypass the normal type loading mechanism from the PostgreSQL catalog tables and supports a hardcoded list of basic types. | none
 
-## Obsolete
+## Obsolete/removed
 
 Parameter                 | Description                                                                                                         | Default
 ------------------------- | ------------------------------------------------------------------------------------------------------------------- | -------
 Internal Command Timeout  | The time to wait (in seconds) while trying to execute an internal command before terminating the attempt and generating an error. -1 uses CommandTimeout, 0 means no timeout. | -1
+EF Template Database      | The database template to specify when creating a database in non-core Entity Framework.  Removed in 8.0.            | template1
+EF Admin Database         | The database admin to specify when creating and dropping a database in non-core Entity Framework. Removed in 8.0.   | template1
 
 ## Environment variables