man: Remove mention of EXT_RESOURCES

It doesn't exists anymore.

Reviewed by:	debdrup (manpages)
Differential Revision:	https://reviews.freebsd.org/D33840

share/man/man9/nvmem.9

@@ -33,7 +33,6 @@
 .Nm nvmem_write_cell_by_name ,
 .Nm nvmem_write_cell_by_idx ,
 .Sh SYNOPSIS
-.Cd "options EXT_RESOURCES"
 .Cd "options FDT"
 .Cd "device nvmem"
 .In sys/extres/nvmem/nvmem.h

share/man/man9/regulator.9

@@ -39,7 +39,6 @@
 .Nm regulator_get_by_ofw_property
 .Nd regulator methods
 .Sh SYNOPSIS
-.Cd "options EXT_RESOURCES"
 .Cd "device regulator"
 .In "dev/extres/regulator/regulator.h"
 .Ft int