Tweak some comments

frontend/apps/reader/modules/readerfooter.lua

@@ -280,7 +280,6 @@ function ReaderFooter:onTapFooter(arg, ges)
         h = self.height
     }
     UIManager.update_regions_func = function()
-       DEBUG("update readerfooter region", region)
        return {region}
     end
     UIManager:setDirty(self.view.dialog, "partial")

frontend/ui/uimanager.lua

@@ -118,7 +118,7 @@ function UIManager:init()
             self.partial_refresh_waveform_mode = NTX_WFM_MODE_GLD16
             -- Since Kobo doesn't have MXCFB_WAIT_FOR_UPDATE_SUBMISSION, enabling this currently has no effect :).
             self.wait_for_every_marker = true
-            -- The H2O appears to be the odd duck... Nickel uses AUTO for PARTIAL updates instead of asking for REAGLD specifically...
+            -- The H2O appears to be the odd duck out... Nickel uses AUTO for PARTIAL updates instead of asking for REAGLD specifically...
             -- For now, try asking for REAGLD, but don't switch them to FULL, since that triggers a black flash on the H2O...
             -- Strangely enough, if I follow the kernel sources correctly, and they aren't using dirty tricks (like enabling some switches at compile time...),
             -- PARTIAL, AUTO updates should default to NTX_WFM_MODE_GL16 on the H2O, which isn't REAGL at all, so, err, WTF?

frontend/ui/widget/iconbutton.lua

@@ -2,7 +2,6 @@ local InputContainer = require("ui/widget/container/inputcontainer")
 local ImageWidget = require("ui/widget/imagewidget")
 local GestureRange = require("ui/gesturerange")
 local UIManager = require("ui/uimanager")
-local DEBUG = require("dbg")
 
 --[[
 Button with a big icon image! Designed for touch device
@@ -42,7 +41,6 @@ end
 function IconButton:onTapClickButton()
     self.image.invert = true
     UIManager.update_regions_func = function()
-        DEBUG("update iconbutton region", self[1].dimen)
         return {self[1].dimen}
     end