[U-Boot] ARM: remove bogus cp_delay() function

[Tom Rini]

On Thu, Jun 08, 2017 at 09:48:41AM +0200, Lothar Waßmann wrote:

> The cp_delay() function was introduced because of a missing 'volatile'
> attribute to the 'asm' statement in get_cr() which led to the 'mrc'
> instruction in get_cr() being optimised out eventually.
> This has been fixed in commit 53fd4b8c22bb ("arm: mmu: Add missing volatile for reading SCTLR register")
> but the bogus cp_delay() function which was introduced as a workaround
> for the malfunctioning get_cr() was never removed.
> 
> Signed-off-by: Lothar Waßmann <LW at KARO-electronics.de>

Reviewed-by: Tom Rini <trini at konsulko.com>

-- 
Tom
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