Remove TensorProtocol.

Author: pschuh

Sources/TensorFlow/Core/Tensor.swift

@@ -29,7 +29,7 @@ public protocol AnyTensor {
 /// The generic parameter `Scalar` describes the type of scalars in the tensor (such as `Int32`,
 ///  `Float`, etc).
 @frozen
-public struct Tensor<Scalar: TensorFlowScalar>: TensorProtocol {
+public struct Tensor<Scalar: TensorFlowScalar> {
     /// The underlying `TensorHandle`.
     /// - Note: `handle` is public to allow user defined ops, but should not normally be used.
     public let handle: TensorHandle<Scalar>
@@ -348,18 +348,8 @@ extension Tensor where Scalar: TensorFlowFloatingPoint {
 ///   during the conversion from an array literal to a `Tensor`, and is purely
 ///   for implementation purposes.
 @frozen
-public struct _TensorElementLiteral<Scalar>: TensorProtocol where Scalar: TensorFlowScalar {
+public struct _TensorElementLiteral<Scalar> where Scalar: TensorFlowScalar {
     @usableFromInline let tensor: Tensor<Scalar>
-
-    @inlinable
-    public var handle: TensorHandle<Scalar> {
-        return tensor.handle
-    }
-
-    @inlinable
-    public init(handle: TensorHandle<Scalar>) {
-        tensor = Tensor(handle: handle)
-    }
 }
 
 extension _TensorElementLiteral: ExpressibleByBooleanLiteral

Sources/TensorFlow/Core/TensorGroup.swift

@@ -240,21 +240,20 @@ extension _TensorElementLiteral: TensorGroup {
         return [Scalar.tensorFlowDataType]
     }
 
-    public var _tensorHandles: [_AnyTensorHandle] { [self.handle.handle] }
+    public var _tensorHandles: [_AnyTensorHandle] { tensor._tensorHandles }
 
     public func _unpackTensorHandles(into address: UnsafeMutablePointer<CTensorHandle>?) {
-        address!.initialize(to: handle._cTensorHandle)
+        tensor._unpackTensorHandles(into: address)
     }
 
     public init(_owning tensorHandles: UnsafePointer<CTensorHandle>?) {
-        self.init(handle: TensorHandle(_owning: tensorHandles!.pointee))
+        tensor = Tensor(_owning: tensorHandles)
     }
 
     public init<C: RandomAccessCollection>(
         _handles: C
     ) where C.Element: _AnyTensorHandle {
-        precondition(_handles.count == 1)
-        self.init(handle: TensorHandle(handle: _handles[_handles.startIndex]))
+        tensor = Tensor(_handles: _handles)
     }
 }