remove friend class RegExpOptimize

alib2data/src/regexp/formal/FormalRegExpAlternation.h

@@ -13,12 +13,6 @@
 namespace regexp {
-namespace simplify {
-
-class RegExpOptimize;
-
-} /* namespace simplify */
-
 /**
  * Represents alternation operator in the regular expression. Contains list of FormalRegExpElement
  * as operands of the operator.

alib2data/src/regexp/formal/FormalRegExpConcatenation.h

@@ -15,12 +15,6 @@
 namespace regexp {
-namespace simplify {
-
-class RegExpOptimize;
-
-} /* namespace simplify */
-
 /**
  * Represents concatenation operator in the regular expression. Contains list of FormalRegExpElement
  * as operands of the operator.

alib2data/src/regexp/formal/FormalRegExpIteration.h

@@ -13,12 +13,6 @@
 namespace regexp {
-namespace simplify {
-
-class RegExpOptimize;
-
-} /* namespace simplify */
-
 /**
  * Represents iteration operator in the regular expression. Contains one FormalRegExpElement
  * as operand.