Remove unnecessary point setup calculations

SetupRoutine uses V0 == V1 == V2 when drawing points, so we don't have
to duplicate those vertices explicitly.

Bug: b/149537975
Change-Id: I723a7139f5eb5735bedb0c17796c00dc4b414fa7
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/42028
Presubmit-Ready: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
diff --git a/src/Device/Renderer.cpp b/src/Device/Renderer.cpp
index 538ed96..90db545 100644
--- a/src/Device/Renderer.cpp
+++ b/src/Device/Renderer.cpp
@@ -1146,14 +1146,8 @@
 			}
 		}
 
-		triangle.v1 = triangle.v0;
-		triangle.v2 = triangle.v0;
-
-		constexpr float subPixF = vk::SUBPIXEL_PRECISION_FACTOR;
-
-		triangle.v1.projected.x += iround(subPixF * 0.5f * pSize);
-		triangle.v2.projected.y -= iround(subPixF * 0.5f * pSize) * (data.HxF[0] > 0.0f ? 1 : -1);  // Both Direct3D and OpenGL expect (0, 0) in the top-left corner
 		primitive.pointSizeInv = 1.0f / pSize;
+
 		return draw.setupRoutine(&primitive, &triangle, &polygon, &data);
 	}