consoles: remove unused infrastructure

The __console attribute as well as linker binding
was dropped at some point. Kill of the dead code and
infrastructure.

Change-Id: I15e1fb4468fffe2e148ec9ac8539dfd958551807
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10279
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/lib/ramstage.ld

@@ -53,10 +53,6 @@
 	/* If any changes are made to the driver start/symbols or the
 	 * section names the equivalent changes need to made to
 	 * rmodule.ld. */
-	console_drivers = .;
-	KEEP(*(.rodata.console_drivers));
-	econsole_drivers = . ;
-	. = ALIGN(8);
 	pci_drivers = . ;
 	KEEP(*(.rodata.pci_driver));
 	epci_drivers = . ;