Drop support for CONFIG_SKIP_RELOCATE_UBOOT

For ARM systems, before ELF relocation was introduced,
CONFIG_SKIP_RELOCATE_UBOOT coul be used to prevent *COPYING* the
U-Boot image from whereever it was loaded to it's link address
(CONFIG_SYS_TEXT_BASE).  The name was badly chosen, as no relocation
was performed at all, it was just a memcpy().

With ELF relocation, this does not work like that any more, and
related boards need to be fixed anyway.  So don't keep this relict any
longer.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
diff --git a/README b/README
index f559811..1acf9a3 100644
--- a/README
+++ b/README
@@ -2836,19 +2836,17 @@
 		globally (CONFIG_CMD_MEM).
 
 - CONFIG_SKIP_LOWLEVEL_INIT
-- CONFIG_SKIP_RELOCATE_UBOOT
+                [ARM only] If this variable is defined, then certain
+                low level initializations (like setting up the memory
+                controller) are omitted and/or U-Boot does not
+                relocate itself into RAM.
 
-		[ARM only] If these variables are defined, then
-		certain low level initializations (like setting up
-		the memory controller) are omitted and/or U-Boot does
-		not relocate itself into RAM.
-		Normally these variables MUST NOT be defined. The
-		only exception is when U-Boot is loaded (to RAM) by
-		some other boot loader or by a debugger which
-		performs these initializations itself.
+                Normally this variable MUST NOT be defined. The only
+                exception is when U-Boot is loaded (to RAM) by some
+                other boot loader or by a debugger which performs
+                these initializations itself.
 
 - CONFIG_PRELOADER
-
 		Modifies the behaviour of start.S when compiling a loader
 		that is executed before the actual U-Boot. E.g. when
 		compiling a NAND SPL.