iwlagn: remove un-necessary file

Most of the functions in iwl-agn-hcmd are move to other files, no point to
keep the file anymore.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c
index 02c7c65..540e66f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-calib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-calib.c
@@ -840,6 +840,65 @@
 			active_chains);
 }
 
+static void iwlagn_gain_computation(struct iwl_priv *priv,
+		u32 average_noise[NUM_RX_CHAINS],
+		u16 min_average_noise_antenna_i,
+		u32 min_average_noise,
+		u8 default_chain)
+{
+	int i;
+	s32 delta_g;
+	struct iwl_chain_noise_data *data = &priv->chain_noise_data;
+
+	/*
+	 * Find Gain Code for the chains based on "default chain"
+	 */
+	for (i = default_chain + 1; i < NUM_RX_CHAINS; i++) {
+		if ((data->disconn_array[i])) {
+			data->delta_gain_code[i] = 0;
+			continue;
+		}
+
+		delta_g = (priv->cfg->base_params->chain_noise_scale *
+			((s32)average_noise[default_chain] -
+			(s32)average_noise[i])) / 1500;
+
+		/* bound gain by 2 bits value max, 3rd bit is sign */
+		data->delta_gain_code[i] =
+			min(abs(delta_g),
+			(long) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
+
+		if (delta_g < 0)
+			/*
+			 * set negative sign ...
+			 * note to Intel developers:  This is uCode API format,
+			 *   not the format of any internal device registers.
+			 *   Do not change this format for e.g. 6050 or similar
+			 *   devices.  Change format only if more resolution
+			 *   (i.e. more than 2 bits magnitude) is needed.
+			 */
+			data->delta_gain_code[i] |= (1 << 2);
+	}
+
+	IWL_DEBUG_CALIB(priv, "Delta gains: ANT_B = %d  ANT_C = %d\n",
+			data->delta_gain_code[1], data->delta_gain_code[2]);
+
+	if (!data->radio_write) {
+		struct iwl_calib_chain_noise_gain_cmd cmd;
+
+		memset(&cmd, 0, sizeof(cmd));
+
+		iwl_set_calib_hdr(&cmd.hdr,
+			priv->_agn.phy_calib_chain_noise_gain_cmd);
+		cmd.delta_gain_1 = data->delta_gain_code[1];
+		cmd.delta_gain_2 = data->delta_gain_code[2];
+		trans_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
+			CMD_ASYNC, sizeof(cmd), &cmd);
+
+		data->radio_write = 1;
+		data->state = IWL_CHAIN_NOISE_CALIBRATED;
+	}
+}
 
 /*
  * Accumulate 16 beacons of signal and noise statistics for each of