sip: remove useless switchbox

This option is fully replaced by sded media exchange and the switch
is only enabling the two next checkboxes

Change-Id: Ida4736fd6aa8e2a9c5327aa3bc4b236ecaa0a69e

src/app/constant/JamiStrings.qml

@@ -103,7 +103,6 @@ Item {
 
     // AdvancedSIPSecuritySettings && AdvancedJamiSecuritySettings
     property string security: qsTr("Security")
-    property string encryptMediaStream: qsTr("Encrypt media streams (SRTP)")
     property string enableSDES: qsTr("Enable SDES key exchange")
     property string fallbackRTP: qsTr("Allow fallback on RTP")
     property string encryptNegotiation: qsTr("Encrypt negotiation (TLS)")

src/app/settingsview/components/AdvancedSIPSecuritySettings.qml

@@ -60,22 +60,9 @@ ColumnLayout {
         Layout.fillWidth: true
         Layout.leftMargin: JamiTheme.preferredMarginSize
 
-        ToggleSwitch {
-            id: encryptMediaStreamsToggle
-
-            labelText: JamiStrings.encryptMediaStream
-            fontPointSize: JamiTheme.settingsFontSize
-
-            checked: CurrentAccount.enable_SRTP
-
-            onSwitchToggled: CurrentAccount.enable_SRTP = checked
-        }
-
         ToggleSwitch {
             id: enableSDESToggle
 
-            enabled: CurrentAccount.enable_SRTP
-
             labelText: JamiStrings.enableSDES
             fontPointSize: JamiTheme.settingsFontSize
 
@@ -87,8 +74,6 @@ ColumnLayout {
         ToggleSwitch {
             id: fallbackRTPToggle
 
-            enabled: CurrentAccount.enable_SRTP
-
             labelText: JamiStrings.fallbackRTP
             fontPointSize: JamiTheme.settingsFontSize