Fix accidental duplications left in

Author: idodeclare

opengrok-indexer/src/main/resources/analysis/sql/JointSQLProductions.lexh

@@ -23,14 +23,9 @@
  * Portions Copyright (c) 2017, 2019, Chris Fraire <cfraire@me.com>.
  */
 
-Sign = "+" | "-"
-SimpleNumber = [0-9]+ | [0-9]+ "." [0-9]* | [0-9]* "." [0-9]+
-ScientificNumber = ({SimpleNumber} [eE] {Sign}? [0-9]+)
-BinaryConstant = [0][xX] [0-9a-fA-F]*
-
 /*
- *     Number and Identifier must be defined in the specific SQL dialect's .lex
- * file.
+ *     Number and Identifier must be defined in the specific SQL dialect's .lexh
+ * file. Otherwise, JointSQL.lexh has the definitions shared among dialects.
  *     The subclass must override getDialectKeywords() to return the appropriate
  * Set for the dialect.
  */