Remove incorrect type relationship

ahejlsberg · ahejlsberg · commit 1f4cbcefb1cf · 2017-01-11T11:50:30.000-08:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -7409,16 +7409,6 @@ namespace ts {
                             }
                         }
                     }
-                    else {
-                        // Given a type parameter K with a constraint keyof T, a type S is
-                        // assignable to K if S is assignable to keyof T.
-                        const constraint = getConstraintOfTypeParameter(<TypeParameter>target);
-                        if (constraint && constraint.flags & TypeFlags.Index) {
-                            if (result = isRelatedTo(source, constraint, reportErrors)) {
-                                return result;
-                            }
-                        }
-                    }
                 }
                 else if (target.flags & TypeFlags.Index) {
                     // A keyof S is related to a keyof T if T is related to S.

Original file line number	Diff line number	Diff line change
`@@ -7409,16 +7409,6 @@ namespace ts {`
`7409`	`7409`	`}`
`7410`	`7410`	`}`
`7411`	`7411`	`}`
`7412`		`- else {`
`7413`		`- // Given a type parameter K with a constraint keyof T, a type S is`
`7414`		`- // assignable to K if S is assignable to keyof T.`
`7415`		`- const constraint = getConstraintOfTypeParameter(<TypeParameter>target);`
`7416`		`- if (constraint && constraint.flags & TypeFlags.Index) {`
`7417`		`- if (result = isRelatedTo(source, constraint, reportErrors)) {`
`7418`		`- return result;`
`7419`		`- }`
`7420`		`- }`
`7421`		`- }`
`7422`	`7412`	`}`
`7423`	`7413`	`else if (target.flags & TypeFlags.Index) {`
`7424`	`7414`	`// A keyof S is related to a keyof T if T is related to S.`