[geary/wip/conversation-polish] Remove uused ClientWebView.has_valid_height property

[Michael Gratton <mjog src gnome org>]

commit c94f7a83e798b6dcf91eedf54783d90b504cb5d9
Author: Michael Gratton <mike vee net>
Date:   Thu Jan 31 09:31:14 2019 +1100

    Remove uused ClientWebView.has_valid_height property

 src/client/components/client-web-view.vala | 4 ----
 1 file changed, 4 deletions(-)
---
diff --git a/src/client/components/client-web-view.vala b/src/client/components/client-web-view.vala
index 3af0d7c2..d79e34a7 100644
--- a/src/client/components/client-web-view.vala
+++ b/src/client/components/client-web-view.vala
@@ -202,9 +202,6 @@ public class ClientWebView : WebKit.WebView, Geary.BaseInterface {
     /** Determines if the view has any selected text */
     public bool has_selection { get; private set; default = false; }
 
-    /** Determines if the view has started rendering the HTML */
-    public bool has_valid_height { get; private set; default = false; }
-
     /** The HTML content's current preferred height in window pixels. */
     public int preferred_height {
         get {
@@ -603,7 +600,6 @@ public class ClientWebView : WebKit.WebView, Geary.BaseInterface {
         double height = this.webkit_reported_height;
         try {
             height = WebKitUtil.to_number(result);
-            this.has_valid_height = true;
         } catch (Geary.JS.Error err) {
             debug("Could not get preferred height: %s", err.message);
         }