[platform/dx010] Remove unused pca9541 device init line (sonic-net#6280)

Remove the unused codes addressed in sonic-net#5891 on Dx010 platform.

platform/broadcom/sonic-platform-modules-cel/debian/platform-modules-dx010.init

@@ -61,17 +61,6 @@ start)
         [ $found -eq 0 ] && echo "cannot find iSMT" && exit 1
 
         i2cset -y ${devnum} 0x70 0x10 0x00 0x01 i
-
-        # Attach PCA9541 Ox70 Master Selector
-        chmod 755 /sys/bus/i2c/devices/i2c-${devnum}/new_device
-        # FIXME: commenting out the following line.
-        #        there had been no pca9541 driver loaded on Celestica platform,
-        #        the recent addition of this driver casued following line
-        #        becoming effictive, but negatively impacted the platform
-        #        stability. Commenting it out restores the original behavior
-        #        on Celestica platform.
-        #        This change should be further analyzed and updated.
-        # echo pca9541 0x70 > /sys/bus/i2c/devices/i2c-${devnum}/new_device
         sleep 1
 
         # Attach PCA9548 0x71 Channel Extender for Main Board