api!: remove addr field from Account objects in JSON-RPC APIs

`list_transports()` should be used instead.
Previously `addr` field might have even not correspond to any transport
as it was `Config::Addr` and not `Config::ConfiguredAddr`.

BREAKING CHANGE: list_transports() should be used instead.

deltachat-jsonrpc/src/api/types/account.rs

@@ -13,7 +13,6 @@ pub enum Account {
     Configured {
         id: u32,
         display_name: Option<String>,
-        addr: Option<String>,
         // size: u32,
         profile_image: Option<String>,
         color: String,
@@ -29,7 +28,6 @@ impl Account {
     pub async fn from_context(ctx: &deltachat::context::Context, id: u32) -> Result<Self> {
         if ctx.is_configured().await? {
             let display_name = ctx.get_config(Config::Displayname).await?;
-            let addr = ctx.get_config(Config::Addr).await?;
             let profile_image = ctx.get_config(Config::Selfavatar).await?;
             let color = color_int_to_hex_string(
                 Contact::get_by_id(ctx, ContactId::SELF)
@@ -41,7 +39,6 @@ impl Account {
             Ok(Account::Configured {
                 id,
                 display_name,
-                addr,
                 profile_image,
                 color,
                 private_tag,