[pitivi] proxy: Remove unused returned values

[Alexandru Băluț <alexbalut src gnome org>]

commit defc5c977ea5fe0fcf55b99e0fa5996b383cf3be
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Mon Dec 19 22:56:33 2016 +0100

    proxy: Remove unused returned values
    
    Reviewed-by: Thibault Saunier <tsaunier gnome org>
    Differential Revision: https://phabricator.freedesktop.org/D1564

 pitivi/project.py     |    6 +++---
 pitivi/utils/proxy.py |   15 ++++++++++-----
 2 files changed, 13 insertions(+), 8 deletions(-)
---
diff --git a/pitivi/project.py b/pitivi/project.py
index bee8504..f93db9e 100644
--- a/pitivi/project.py
+++ b/pitivi/project.py
@@ -1093,10 +1093,10 @@ class Project(Loggable, GES.Project):
 
         if self.loaded:
             if not asset.get_proxy_target() in self.list_assets(GES.Extractable):
-                self.app.proxy_manager.addJob(asset, asset.force_proxying)
+                self.app.proxy_manager.add_job(asset, asset.force_proxying)
         else:
-            self.debug("Project still loading, not using proxies: "
-                       "%s", asset.props.id)
+            self.debug("Project still loading, not using proxies: %s",
+                       asset.props.id)
             asset.creation_progress = 100
             self.__updateAssetLoadingProgress()
 
diff --git a/pitivi/utils/proxy.py b/pitivi/utils/proxy.py
index 16ed8b8..accc26d 100644
--- a/pitivi/utils/proxy.py
+++ b/pitivi/utils/proxy.py
@@ -426,7 +426,12 @@ class ProxyManager(GObject.Object, Loggable):
 
         return
 
-    def addJob(self, asset, force_proxying=False):
+    def add_job(self, asset, force_proxying=False):
+        """Adds a transcoding job for the specified asset if needed.
+
+        Args:
+            asset (GES.Asset): The asset to be transcoded.
+        """
         self.debug("Maybe create a proxy for %s (strategy: %s)",
                    asset.get_id(), self.app.settings.proxyingStrategy)
 
@@ -439,10 +444,10 @@ class ProxyManager(GObject.Object, Loggable):
             # Make sure to notify we do not need a proxy for
             # that asset.
             self.emit("proxy-ready", asset, None)
-            return True
+            return
 
         if self.is_asset_queued(asset):
-            return True
+            return
 
         proxy_uri = self.getProxyUri(asset)
         if Gio.File.new_for_uri(proxy_uri).query_exists(None):
@@ -452,7 +457,7 @@ class ProxyManager(GObject.Object, Loggable):
                                     proxy_uri, None,
                                     self.__assetLoadedCb, asset,
                                     None)
-            return True
+            return
 
         self.__createTranscoder(asset)
-        return True
+        return