Fix some warnings

sources/PTYSession.m

@@ -3375,7 +3375,6 @@ static NSTimeInterval kMinimumPartialLineTriggerCheckInterval = 0.5;
     }
     static const NSTimeInterval kUpdateTitlePeriod = 0.7;
-    const NSTimeInterval now = [NSDate timeIntervalSinceReferenceDate];
     if ([[self tab] activeSession] == self) {
         // Update window info for the active tab.
         NSTimeInterval now = [NSDate timeIntervalSinceReferenceDate];

sources/PreferencePanel.h

@@ -94,7 +94,4 @@ void LoadPrefsFromCustomFolder(void);
 - (BOOL)importColorPresetFromFile:(NSString*)filename;
-// Safely remove a profile and references to it and update display.
-- (void)removeProfileWithGuid:(NSString *)guid;
-
 @end

sources/PreferencePanel.m

@@ -399,10 +399,5 @@ NSString *const kSessionProfileDidChange = @"kSessionProfileDidChange";
     [[self window] setFrame:rect display:YES animate:YES];
 }
-- (void)removeProfileWithGuid:(NSString *)guid {
-    [_profilesViewController removeProfileWithGuid:guid
-                                         fromModel:[ProfileModel sharedInstance]];
-}
-
 @end

sources/ProfilePreferencesViewController.h

@@ -49,6 +49,4 @@ extern NSString *const kProfileSessionNameDidEndEditing;
 - (void)resizeWindowForCurrentTab;
 - (void)windowWillClose:(NSNotification *)notification;
-- (void)removeProfileWithGuid:(NSString *)guid fromModel:(ProfileModel *)model;
-
 @end