Merge pull request #1026 from uraimo/no-more-powerpc

diff --git a/Foundation/CGFloat.swift b/Foundation/CGFloat.swift
index 930478c..03371f3 100644
--- a/Foundation/CGFloat.swift
+++ b/Foundation/CGFloat.swift
@@ -9,7 +9,7 @@
 
 @_fixed_layout
 public struct CGFloat {
-#if arch(i386) || arch(arm) || arch(powerpc)
+#if arch(i386) || arch(arm)
     /// The native type used to store the CGFloat, which is Float on
     /// 32-bit architectures and Double on 64-bit architectures.
     public typealias NativeType = Float
@@ -183,7 +183,7 @@
 
     @_transparent
     public init(bitPattern: UInt) {
-#if arch(i386) || arch(arm) || arch(powerpc)
+#if arch(i386) || arch(arm)
         native = NativeType(bitPattern: UInt32(bitPattern))
 #elseif arch(x86_64) || arch(arm64) || arch(s390x) || arch(powerpc64) || arch(powerpc64le)
         native = NativeType(bitPattern: UInt64(bitPattern))