fixes in NAMESPACE

Author: hqzizania

R/pkg/NAMESPACE

@@ -26,7 +26,6 @@ exportMethods("cache",
               "intersect",
               "isLocal",
               "join",
-              "length",
               "limit",
               "orderBy",
               "names",
@@ -101,9 +100,6 @@ export("cacheTable",
        "tables",
        "uncacheTable")
 
-export("sparkRSQL.init",
-       "sparkRHive.init")
-
 export("structField",
        "structField.jobj",
        "structField.character",