remove nodegroups from docs
diff --git a/asterix-doc/src/site/markdown/aql.md b/asterix-doc/src/site/markdown/aql.md
index 1fa553c..e4d0b33 100644
--- a/asterix-doc/src/site/markdown/aql.md
+++ b/asterix-doc/src/site/markdown/aql.md
@@ -117,11 +117,10 @@
 
 ### Lifecycle Management Statements
 
-    CreateStatement ::= "create" ( TypeSpecification | NodegroupSpecification | DatasetSpecification | IndexSpecification | DataverseSpecification | FunctionSpecification )
+    CreateStatement ::= "create" ( TypeSpecification | DatasetSpecification | IndexSpecification | DataverseSpecification | FunctionSpecification )
 
     DropStatement       ::= "drop" ( <DATASET> QualifiedName IfExists
                                    | "index" DoubleQualifiedName IfExists
-                                   | "nodegroup" Identifier IfExists
                                    | "type" FunctionOrTypeName IfExists
                                    | "dataverse" Identifier IfExists
                                    | "function" FunctionSignature IfExists )
@@ -141,10 +140,6 @@
     OrderedListTypeDef   ::= "[" ( TypeExpr ) "]"
     UnorderedListTypeDef ::= "{{" ( TypeExpr ) "}}"
     
-#### Nodegroups
-    
-    NodegroupSpecification ::= "nodegroup" Identifier IfNotExists "on" Identifier ( "," Identifier )*
-    
 #### Datasets
 
     DatasetSpecification ::= "external" <DATASET> QualifiedName <LEFTPAREN> Identifier <RIGHTPAREN> IfNotExists