remove operators remnants

Author: JPryce-Aklundh

modules/ROOT/content-nav.adoc

@@ -131,7 +131,6 @@
 ** xref:syntax/variables.adoc[]
 ** xref:syntax/keywords.adoc[]
 ** xref:syntax/parameters.adoc[]
-** xref:syntax/operators.adoc[]
 ** xref:syntax/comments.adoc[]
 
 * xref:deprecations-additions-removals-compatibility.adoc[]

modules/ROOT/pages/syntax/index.adoc

@@ -10,5 +10,4 @@ Further information can be found in the following sections:
 * xref::syntax/variables.adoc[Variables]
 * xref::syntax/keywords.adoc[Keywords]
 * xref::syntax/parameters.adoc[Parameters]
-* xref::syntax/operators.adoc[Operators]
 * xref::syntax/comments.adoc[Comments]