Fix: Update some network documentation to match the new command system (#10657)

src/network/core/tcp_admin.h

@@ -464,10 +464,8 @@ protected:
 	 * uint32  ID of the client sending the command.
 	 * uint8   ID of the company (0..MAX_COMPANIES-1).
 	 * uint16  ID of the command.
-	 * uint32  P1 (variable data passed to the command).
-	 * uint32  P2 (variable data passed to the command).
-	 * uint32  Tile where this is taking place.
-	 * string  Text passed to the command.
+	 * <var>   Command specific buffer with encoded parameters of variable length.
+	 *         The content differs per command and can change without notification.
 	 * uint32  Frame of execution.
 	 * @param p The packet that was just received.
 	 * @return The state the network should have.

src/network/core/tcp_game.h

@@ -335,10 +335,8 @@ protected:
 	 * Send a DoCommand to the Server:
 	 * uint8   ID of the company (0..MAX_COMPANIES-1).
 	 * uint32  ID of the command (see command.h).
-	 * uint32  P1 (free variables used in DoCommand).
-	 * uint32  P2
-	 * uint32  Tile where this is taking place.
-	 * string  Text.
+	 * <var>   Command specific buffer with encoded parameters of variable length.
+	 *         The content differs per command and can change without notification.
 	 * uint8   ID of the callback.
 	 * @param p The packet that was just received.
 	 */
@@ -348,10 +346,8 @@ protected:
 	 * Sends a DoCommand to the client:
 	 * uint8   ID of the company (0..MAX_COMPANIES-1).
 	 * uint32  ID of the command (see command.h).
-	 * uint32  P1 (free variable used in DoCommand).
-	 * uint32  P2.
-	 * uint32  Tile where this is taking place.
-	 * string  Text.
+	 * <var>   Command specific buffer with encoded parameters of variable length.
+	 *         The content differs per command and can change without notification.
 	 * uint8   ID of the callback.
 	 * uint32  Frame of execution.
 	 * @param p The packet that was just received.