diff --git a/Jakefile.js b/Jakefile.js
index 943f2eff5ec4a..e99043d3f5fe5 100644
--- a/Jakefile.js
+++ b/Jakefile.js
@@ -813,7 +813,6 @@ task("update-sublime", ["local", serverFile], function() {
 var tslintRuleDir = "scripts/tslint";
 var tslintRules = ([
     "nextLineRule",
-    "noInferrableTypesRule",
     "noNullRule",
     "booleanTriviaRule"
 ]);
diff --git a/scripts/tslint/noInferrableTypesRule.ts b/scripts/tslint/noInferrableTypesRule.ts
deleted file mode 100644
index cbc0162260eeb..0000000000000
--- a/scripts/tslint/noInferrableTypesRule.ts
+++ /dev/null
@@ -1,49 +0,0 @@
-/// <reference path="../../node_modules/tslint/typings/typescriptServices.d.ts" />
-/// <reference path="../../node_modules/tslint/lib/tslint.d.ts" />
-
-
-export class Rule extends Lint.Rules.AbstractRule {
-    public static FAILURE_STRING_FACTORY = (type: string) => `LHS type (${type}) inferred by RHS expression, remove type annotation`;
-
-    public apply(sourceFile: ts.SourceFile): Lint.RuleFailure[] {
-        return this.applyWithWalker(new InferrableTypeWalker(sourceFile, this.getOptions()));
-    }
-}
-
-class InferrableTypeWalker extends Lint.RuleWalker {
-    visitVariableStatement(node: ts.VariableStatement) {
-        node.declarationList.declarations.forEach(e => {
-            if ((!!e.type) && (!!e.initializer)) {
-                let failure: string;
-                switch (e.type.kind) {
-                    case ts.SyntaxKind.BooleanKeyword:
-                        if (e.initializer.kind === ts.SyntaxKind.TrueKeyword || e.initializer.kind === ts.SyntaxKind.FalseKeyword) {
-                            failure = 'boolean';
-                        }
-                    break;
-                    case ts.SyntaxKind.NumberKeyword:
-                        if (e.initializer.kind === ts.SyntaxKind.NumericLiteral) {
-                            failure = 'number';
-                        }
-                    break;
-                    case ts.SyntaxKind.StringKeyword:
-                        switch (e.initializer.kind) {
-                            case ts.SyntaxKind.StringLiteral:
-                            case ts.SyntaxKind.NoSubstitutionTemplateLiteral:
-                            case ts.SyntaxKind.TemplateExpression:
-                                failure = 'string';
-                                break;
-                            default:
-                                break;
-                        }
-                    break;
-                }
-                if (failure) {
-                    this.addFailure(this.createFailure(e.type.getStart(), e.type.getWidth(), Rule.FAILURE_STRING_FACTORY(failure)));
-                }
-            }
-        });
-
-        super.visitVariableStatement(node);
-    }
-}
diff --git a/src/harness/fourslash.ts b/src/harness/fourslash.ts
index 3042f0c464757..a846077a85f2d 100644
--- a/src/harness/fourslash.ts
+++ b/src/harness/fourslash.ts
@@ -157,7 +157,7 @@ namespace FourSlash {
             return true;
         }
 
-        public setCancelled(numberOfCalls: number = 0): void {
+        public setCancelled(numberOfCalls = 0): void {
             ts.Debug.assert(numberOfCalls >= 0);
             this.numberOfCallsBeforeCancellation = numberOfCalls;
         }
@@ -761,7 +761,7 @@ namespace FourSlash {
             this.raiseError(`verifyReferencesAtPositionListContains failed - could not find the item: ${JSON.stringify(missingItem)} in the returned list: (${JSON.stringify(references)})`);
         }
 
-        public verifyReferencesCountIs(count: number, localFilesOnly: boolean = true) {
+        public verifyReferencesCountIs(count: number, localFilesOnly = true) {
             this.taoInvalidReason = "verifyReferences NYI";
 
             let references = this.getReferencesAtCaret();