diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py
index c16dd8acc3..e6a34561c1 100755
--- a/synapse/app/homeserver.py
+++ b/synapse/app/homeserver.py
@@ -406,7 +406,6 @@ def setup(config_options):
         redirect_root_to_web_client=True,
     )
 
-
     logger.info("Preparing database: %r...", config.database_config)
 
     try:
diff --git a/synapse/config/repository.py b/synapse/config/repository.py
index bf727285d7..adaf4e4bb2 100644
--- a/synapse/config/repository.py
+++ b/synapse/config/repository.py
@@ -22,15 +22,6 @@ class ContentRepositoryConfig(Config):
         self.max_image_pixels = self.parse_size(config["max_image_pixels"])
         self.media_store_path = self.ensure_directory(config["media_store_path"])
 
-    def parse_size(self, string):
-        sizes = {"K": 1024, "M": 1024 * 1024}
-        size = 1
-        suffix = string[-1]
-        if suffix in sizes:
-            string = string[:-1]
-            size = sizes[suffix]
-        return int(string) * size
-
     def default_config(self, config_dir_path, server_name):
         media_store = self.default_path("media_store")
         return """