arm: ti814x: Remove remaining support code

When the ti814x_evm config was removed most, but not all, of the
relevant support code was remove.  Get rid of what was missed.

Fixes: 50b532686849 ("ti814x: Remove platform")
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 08b6c7b..76e1991 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -704,7 +704,7 @@
 	depends on ARCH_OMAP2PLUS || ARCH_SOCFPGA
 	default 2 if TI816X
 	default 3 if OMAP34XX || AM33XX || AM43XX
-	default 4 if ARCH_SOCFPGA || OMAP44XX || TI814X
+	default 4 if ARCH_SOCFPGA || OMAP44XX
 	default 5 if OMAP54XX
 	help
 	  Define the maximum number of available I2C buses.