Revert "[EXC_BAD_ACCESS] Update LayoutConstraint == operator to support iOS 10 and higher changes (#574)" (#593)

This reverts commit bc2b0b93320513eb747b3baf6332c05bacc067b4.

Source/LayoutConstraint.swift

@@ -44,18 +44,14 @@ public class LayoutConstraint : NSLayoutConstraint {
 }
 
 internal func ==(lhs: LayoutConstraint, rhs: LayoutConstraint) -> Bool {
-    let areLayoutAnchorsEqual: Bool
-    if #available(iOS 10.0, OSXApplicationExtension 10.12, *) {
-        areLayoutAnchorsEqual = lhs.firstAnchor === rhs.firstAnchor &&
-            lhs.secondAnchor === rhs.secondAnchor
-    } else {
-        areLayoutAnchorsEqual = lhs.firstItem === rhs.firstItem &&
-            lhs.secondItem === rhs.secondItem &&
-            lhs.firstAttribute == rhs.firstAttribute &&
-            lhs.secondAttribute == rhs.secondAttribute
+    guard lhs.firstItem === rhs.firstItem &&
+          lhs.secondItem === rhs.secondItem &&
+          lhs.firstAttribute == rhs.firstAttribute &&
+          lhs.secondAttribute == rhs.secondAttribute &&
+          lhs.relation == rhs.relation &&
+          lhs.priority == rhs.priority &&
+          lhs.multiplier == rhs.multiplier else {
+        return false
     }
-    return areLayoutAnchorsEqual &&
-        lhs.relation == rhs.relation &&
-        lhs.priority == rhs.priority &&
-        lhs.multiplier == rhs.multiplier
+    return true
 }

Tests/SnapKitTests/Tests.swift

@@ -580,34 +580,4 @@ class SnapKitTests: XCTestCase {
         let higherPriority: ConstraintPriority = ConstraintPriority.high.advanced(by: 1)
         XCTAssertEqual(higherPriority.value, highPriority.value + 1)
     }
-    
-    func testLayoutConstraintEqual() {
-        let view1 = View()
-        let view2 = View()
-        let layoutConstraint1 = LayoutConstraint(item: view1,
-                                                 attribute: .top,
-                                                 relatedBy: .lessThanOrEqual,
-                                                 toItem: view2,
-                                                 attribute: .bottom,
-                                                 multiplier: 2,
-                                                 constant: 30)
-        let layoutConstraint2 = LayoutConstraint(item: view1,
-                                                 attribute: .top,
-                                                 relatedBy: .lessThanOrEqual,
-                                                 toItem: view2,
-                                                 attribute: .bottom,
-                                                 multiplier: 2,
-                                                 constant: 30)
-        let layoutConstraint3 = LayoutConstraint(item: view1,
-                                                 attribute: .top,
-                                                 relatedBy: .lessThanOrEqual,
-                                                 toItem: view2,
-                                                 attribute: .bottom,
-                                                 multiplier: 1,
-                                                 constant: 50)
-        XCTAssertTrue(layoutConstraint1 == layoutConstraint2)
-        XCTAssertFalse(layoutConstraint1 == layoutConstraint3)
-        XCTAssertFalse(layoutConstraint2 == layoutConstraint3)
-    }
-    
 }