remove page:getPageText debug dump to improve performance on device

And leave it in unireader if we can't find text on page

pdfreader.lua

@@ -41,7 +41,7 @@ function PDFReader:getText(pageno)
 		return nil
 	end
 	local text = page:getPageText()
-	print(dump(text))
+	--print("## page:getPageText "..dump(text)) -- performance impact on device
 	page:close()
 	return text
 end

unireader.lua

@@ -342,6 +342,8 @@ function UniReader:startHighLightMode()
 			end
 		end
 
+		print("## _findFirstWordInView none found in "..dump(t))
+
 		return nil
 	end