iwlagn: remove "disable otp refresh" W/A

Remove the "disable otp refresh" work-around, not needed anymore.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c
index 00480e4..0e13f0b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-2000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-2000.c
@@ -85,9 +85,6 @@
 	if (priv->cfg->iq_invert)
 		iwl_set_bit(priv, CSR_GP_DRIVER_REG,
 			    CSR_GP_DRIVER_REG_BIT_RADIO_IQ_INVER);
-
-	if (priv->cfg->disable_otp_refresh)
-		iwl_write_prph(priv, APMG_ANALOG_SVR_REG, 0x80000010);
 }
 
 static struct iwl_sensitivity_ranges iwl2000_sensitivity = {
@@ -267,8 +264,7 @@
 	.need_dc_calib = true,					\
 	.need_temp_offset_calib = true,				\
 	.led_mode = IWL_LED_RF_STATE,				\
-	.iq_invert = true,					\
-	.disable_otp_refresh = true				\
+	.iq_invert = true					\
 
 struct iwl_cfg iwl2000_2bgn_cfg = {
 	.name = "2000 Series 2x2 BGN",