Use sources_non_forked folder for pathogen path, with sources_non_forked_fallback folder as fallback.

sources_non_forked/vim-snippets/UltiSnips/proto.snippets

@@ -1,52 +0,0 @@
-priority -50
-
-global !p
-from vimsnippets import complete
-
-FIELD_TYPES = [
-	'double',
-	'float',
-	'int32',
-	'int64',
-	'uint32',
-	'uint64',
-	'sint32',
-	'sint64',
-	'fixed32',
-	'fixed64',
-	'sfixed32',
-	'sfixed64',
-	'bool',
-	'string',
-	'bytes']
-endglobal
-
-snippet mess "Proto message" b
-// ${2:TODO(`whoami`): Describe this message.}
-message ${1:Name} {
-	$0
-
-	// Next available id: 1
-}
-endsnippet
-
-snippet reqf "Required field" b
-// ${4:TODO(`whoami`): Describe this field.}
-optional $1`!p snip.rv = complete(t[1], FIELD_TYPES)` ${2:name} = ${3:1};  // Required
-endsnippet
-
-snippet optf "Optional field" b
-// ${4:TODO(`whoami`): Describe this field.}
-optional $1`!p snip.rv = complete(t[1], FIELD_TYPES)` ${2:name} = ${3:1};
-endsnippet
-
-snippet repf "Repeated field" b
-// ${4:TODO(`whoami`): Describe this field.}
-repeated $1`!p snip.rv = complete(t[1], FIELD_TYPES)` ${2:name} = ${3:1};
-endsnippet
-
-snippet enum "Enumeration" b
-// ${2:TODO(`whoami`): Describe this enum.}
-enum ${1:Name} {
-}
-endsnippet