fix mismatched new/delete[] in BeginRenderPass
fix mismatched new/delete[] in BeginRenderPass

Change-Id: I065e79f9ea676eaec25e89063908cae6f3854e4c
Reviewed-on: https://swiftshader-review.googlesource.com/c/23489
Tested-by: Chris Forbes <c3279c50043e18e9442c1ae071cafa0e7a4ca967@google.com>
Reviewed-by: Alexis Hétu <1c7141772178a7e80858c3db5052b328076f08f4@google.com>

google/swiftshader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader