Remove wifi gain option (#204)

code/espurna/config/general.h

@@ -262,9 +262,6 @@ PROGMEM const char* const custom_reset_string[] = {
 #define WIFI_RECONNECT_INTERVAL 120000      // If could not connect to WIFI, retry after this time in ms
 #define WIFI_MAX_NETWORKS       5           // Max number of WIFI connection configurations
 #define WIFI_AP_MODE            AP_MODE_ALONE
-#ifndef WIFI_GAIN
-#define WIFI_GAIN               0           // WiFi gain in dBm from 0 (normal) to 20.5 (max power and consumption)
-#endif
 
 // Optional hardcoded configuration (up to 2 different networks)
 //#define WIFI1_SSID              "..."

code/espurna/web.ino

@@ -631,7 +631,6 @@ void _wsStart(uint32_t client_id) {
             }
         #endif
 
-        root["wifiGain"] = getSetting("wifiGain", WIFI_GAIN).toFloat();
         root["maxNetworks"] = WIFI_MAX_NETWORKS;
         JsonArray& wifi = root.createNestedArray("wifi");
         for (byte i=0; i<WIFI_MAX_NETWORKS; i++) {

code/espurna/wifi.ino

@@ -50,8 +50,6 @@ bool createAP() {
 
 void wifiConfigure() {
 
-    WiFi.setOutputPower(getSetting("wifiGain", WIFI_GAIN).toFloat());
-
     jw.setHostname(getSetting("hostname").c_str());
     jw.setSoftAP(getSetting("hostname").c_str(), getSetting("adminPass", ADMIN_PASS).c_str());
     jw.setConnectTimeout(WIFI_CONNECT_TIMEOUT);

code/html/index.html

@@ -397,19 +397,6 @@
                                     <div class="pure-u-1 pure-u-sm-1-4"><input type="checkbox" name="alexaEnabled" tabindex="11" /></div>
                                 </div>
 
-                                <div class="pure-g">
-                                    <label class="pure-u-1 pure-u-md-1-4" for="wifiGain">WiFi gain</label>
-                                    <div class="pure-u-1 pure-u-md-3-4">
-                                        <select name="wifiGain" class="pure-u-3-4" tabindex="3">
-                                            <option value="0">Normal</a>
-                                            <option value="10">High</a>
-                                            <option value="20.5">Highest</a>
-                                        </select>
-                                    </div>
-                                    <div class="pure-u-0 pure-u-md-1-4">&nbsp;</div>
-                                    <div class="pure-u-1 pure-u-md-3-4 hint">More gain means better range but also more power consumption. Might not work equally on all devices.</div>
-                                </div>
-
                                 <div class="pure-g module module-ha">
                                     <label class="pure-u-1 pure-u-md-1-4" for="haPrefix">Home Assistant Prefix</label>
                                     <input class="pure-u-1 pure-u-md-1-2" name="haPrefix" type="text" tabindex="31" />