i2c: Remove unused additional legacy soft i2c bus support

Currently the legacy software i2c support is only used for a single bus.
Remove all of the extra and unused support.  Also update the README to
not reference that, and finish removing some already badly auto-edited
related text.

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/README b/README
index 1c1db98..a16afea 100644
--- a/README
+++ b/README
@@ -1466,20 +1466,6 @@
 		Note: This is deprecated in favour of driver model. Use
 		CONFIG_DM_I2C instead.
 
-		This enable the legacy i2c subsystem, and will allow you to use
-		i2c commands at the u-boot command line (as long as you set
-		    CONFIG_SYS_I2C_SOFT_SPEED and CONFIG_SYS_I2C_SOFT_SLAVE
-		    for defining speed and slave address
-		  - activate second bus with I2C_SOFT_DECLARATIONS2 define
-		    CONFIG_SYS_I2C_SOFT_SPEED_2 and CONFIG_SYS_I2C_SOFT_SLAVE_2
-		    for defining speed and slave address
-		  - activate third bus with I2C_SOFT_DECLARATIONS3 define
-		    CONFIG_SYS_I2C_SOFT_SPEED_3 and CONFIG_SYS_I2C_SOFT_SLAVE_3
-		    for defining speed and slave address
-		  - activate fourth bus with I2C_SOFT_DECLARATIONS4 define
-		    CONFIG_SYS_I2C_SOFT_SPEED_4 and CONFIG_SYS_I2C_SOFT_SLAVE_4
-		    for defining speed and slave address
-
 		- drivers/i2c/fsl_i2c.c:
 		  - activate i2c driver with CONFIG_SYS_I2C_FSL
 		    define CONFIG_SYS_FSL_I2C_OFFSET for setting the register
diff --git a/drivers/i2c/soft_i2c.c b/drivers/i2c/soft_i2c.c
index db69c18..c72839e 100644
--- a/drivers/i2c/soft_i2c.c
+++ b/drivers/i2c/soft_i2c.c
@@ -438,80 +438,3 @@
 			 soft_i2c_read, soft_i2c_write, NULL,
 			 CONFIG_SYS_I2C_SOFT_SPEED, CONFIG_SYS_I2C_SOFT_SLAVE,
 			 0)
-#if defined(I2C_SOFT_DECLARATIONS2)
-U_BOOT_I2C_ADAP_COMPLETE(soft01, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_2,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_2,
-			 1)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS3)
-U_BOOT_I2C_ADAP_COMPLETE(soft02, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_3,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_3,
-			 2)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS4)
-U_BOOT_I2C_ADAP_COMPLETE(soft03, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_4,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_4,
-			 3)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS5)
-U_BOOT_I2C_ADAP_COMPLETE(soft04, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_5,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_5,
-			 4)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS6)
-U_BOOT_I2C_ADAP_COMPLETE(soft05, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_6,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_6,
-			 5)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS7)
-U_BOOT_I2C_ADAP_COMPLETE(soft06, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_7,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_7,
-			 6)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS8)
-U_BOOT_I2C_ADAP_COMPLETE(soft07, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_8,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_8,
-			 7)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS9)
-U_BOOT_I2C_ADAP_COMPLETE(soft08, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_9,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_9,
-			 8)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS10)
-U_BOOT_I2C_ADAP_COMPLETE(soft09, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_10,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_10,
-			 9)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS11)
-U_BOOT_I2C_ADAP_COMPLETE(soft10, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_11,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_11,
-			 10)
-#endif
-#if defined(I2C_SOFT_DECLARATIONS12)
-U_BOOT_I2C_ADAP_COMPLETE(soft11, soft_i2c_init, soft_i2c_probe,
-			 soft_i2c_read, soft_i2c_write, NULL,
-			 CONFIG_SYS_I2C_SOFT_SPEED_12,
-			 CONFIG_SYS_I2C_SOFT_SLAVE_12,
-			 11)
-#endif