leds: Drop duplicate LEDS_EXPRESSWIRE config

leds: Drop duplicate LEDS_EXPRESSWIRE config

While moving said config symbol out of the "if NEW_LEDS" block, I
accidentally left a copy inside that block. Remove it.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Closes: https://lore.kernel.org/all/b6c481bb-e854-405e-a428-90301789fe20@infradead.org/
Fixes: 2cd0d1db31e7 ("leds: expresswire: Don't depend on NEW_LEDS")
Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz>
Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20250729-expresswire-dep-fix-v1-1-635cd4cc746b@dujemihanovic.xyz
Signed-off-by: Lee Jones <lee@kernel.org>