diff --git a/CodableFirebaseTests/TestCodableFirebase.swift b/CodableFirebaseTests/TestCodableFirebase.swift
index f7b2a11..0d4ecc5 100644
--- a/CodableFirebaseTests/TestCodableFirebase.swift
+++ b/CodableFirebaseTests/TestCodableFirebase.swift
@@ -857,45 +857,3 @@ fileprivate struct OptionalTopLevelWrapper<T> : Codable, Equatable where T : Cod
         return lhs.value == rhs.value
     }
 }
-
-fileprivate struct FloatNaNPlaceholder : Codable, Equatable {
-    init() {}
-    
-    func encode(to encoder: Encoder) throws {
-        var container = encoder.singleValueContainer()
-        try container.encode(Float.nan)
-    }
-    
-    init(from decoder: Decoder) throws {
-        let container = try decoder.singleValueContainer()
-        let float = try container.decode(Float.self)
-        if !float.isNaN {
-            throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: decoder.codingPath, debugDescription: "Couldn't decode NaN."))
-        }
-    }
-    
-    static func ==(_ lhs: FloatNaNPlaceholder, _ rhs: FloatNaNPlaceholder) -> Bool {
-        return true
-    }
-}
-
-fileprivate struct DoubleNaNPlaceholder : Codable, Equatable {
-    init() {}
-    
-    func encode(to encoder: Encoder) throws {
-        var container = encoder.singleValueContainer()
-        try container.encode(Double.nan)
-    }
-    
-    init(from decoder: Decoder) throws {
-        let container = try decoder.singleValueContainer()
-        let double = try container.decode(Double.self)
-        if !double.isNaN {
-            throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: decoder.codingPath, debugDescription: "Couldn't decode NaN."))
-        }
-    }
-    
-    static func ==(_ lhs: DoubleNaNPlaceholder, _ rhs: DoubleNaNPlaceholder) -> Bool {
-        return true
-    }
-}