Do not run install_rpath if building a framework as its taken care off later by the framework

Author: dgovil

cmake/macros/Private.cmake

@@ -689,6 +689,11 @@ function(_pxr_add_rpath rpathRef target)
 endfunction()
 
 function(_pxr_install_rpath rpathRef NAME)
+    if (PXR_BUILD_APPLE_FRAMEWORK)
+        # Apple Frameworks already fix the install path at the end
+        # so this maks things faster and reduces duplication errors
+        return()
+    endif()
     # Get and remove the origin.
     list(GET ${rpathRef} 0 origin)
     set(rpath ${${rpathRef}})