remove deprecated function

Author: saschanaz

src/services/formatting/smartIndenter.ts

@@ -128,10 +128,6 @@ namespace ts.formatting {
                 if (actualIndentation !== Value.Unknown) {
                     return actualIndentation;
                 }
-                actualIndentation = getLineIndentationWhenExpressionIsInMultiLine(current, sourceFile, options);
-                if (actualIndentation !== Value.Unknown) {
-                    return actualIndentation + options.indentSize!; // TODO: GH#18217
-                }
 
                 previous = current;
                 current = current.parent;
@@ -188,10 +184,6 @@ namespace ts.formatting {
                     if (actualIndentation !== Value.Unknown) {
                         return actualIndentation + indentationDelta;
                     }
-                    actualIndentation = getLineIndentationWhenExpressionIsInMultiLine(current, sourceFile, options);
-                    if (actualIndentation !== Value.Unknown) {
-                        return actualIndentation + indentationDelta;
-                    }
                 }
 
                 // increase indentation if parent node wants its content to be indented and parent and child nodes don't start on the same line
@@ -388,49 +380,6 @@ namespace ts.formatting {
             return Value.Unknown;
         }
 
-        function getLineIndentationWhenExpressionIsInMultiLine(node: Node, sourceFile: SourceFile, options: EditorSettings): number {
-            // actual indentation should not be used when:
-            // - node is close parenthesis - this is the end of the expression
-            if (node.kind === SyntaxKind.CloseParenToken) {
-                return Value.Unknown;
-            }
-
-            if (node.parent && isCallOrNewExpression(node.parent) && node.parent.expression !== node) {
-                const fullCallOrNewExpression = node.parent.expression;
-                const startingExpression = getStartingExpression(fullCallOrNewExpression);
-
-                if (fullCallOrNewExpression === startingExpression) {
-                    return Value.Unknown;
-                }
-
-                const fullCallOrNewExpressionEnd = sourceFile.getLineAndCharacterOfPosition(fullCallOrNewExpression.end);
-                const startingExpressionEnd = sourceFile.getLineAndCharacterOfPosition(startingExpression.end);
-
-                if (fullCallOrNewExpressionEnd.line === startingExpressionEnd.line) {
-                    return Value.Unknown;
-                }
-
-                return findColumnForFirstNonWhitespaceCharacterInLine(fullCallOrNewExpressionEnd, sourceFile, options);
-            }
-
-            return Value.Unknown;
-
-            function getStartingExpression(node: Expression) {
-                while (true) {
-                    switch (node.kind) {
-                        case SyntaxKind.CallExpression:
-                        case SyntaxKind.NewExpression:
-                        case SyntaxKind.PropertyAccessExpression:
-                        case SyntaxKind.ElementAccessExpression:
-                            node = (<PropertyAccessExpression | CallExpression | NewExpression | ElementAccessExpression | PropertyAccessExpression>node).expression;
-                            break;
-                        default:
-                            return node;
-                    }
-                }
-            }
-        }
-
         function deriveActualIndentationFromList(list: ReadonlyArray<Node>, index: number, sourceFile: SourceFile, options: EditorSettings): number {
             Debug.assert(index >= 0 && index < list.length);
             const node = list[index];