Merge pull request RustPython#4377 from andersk/duplicate-from

Remove duplicate declaration of "from" token

Author: DimitrisJim

compiler/parser/python.lalrpop

@@ -1428,10 +1428,9 @@ extern {
         "from" => lexer::Tok::From,
         "global" => lexer::Tok::Global,
         "if" => lexer::Tok::If,
+        "import" => lexer::Tok::Import,
         "in" => lexer::Tok::In,
         "is" => lexer::Tok::Is,
-        "import" => lexer::Tok::Import,
-        "from" => lexer::Tok::From,
         "lambda" => lexer::Tok::Lambda,
         "nonlocal" => lexer::Tok::Nonlocal,
         "not" => lexer::Tok::Not,