Revert "Bug 429917 - New splash screen does not look good on white background "

This reverts commit 92a8888620fb35f02cc9e605a51c98986ed0a1b9.

Reverting since different size than previous one.
diff --git a/platform/org.eclipse.platform/splash.bmp b/platform/org.eclipse.platform/splash.bmp
index 2e4a56a..bca968a 100644
--- a/platform/org.eclipse.platform/splash.bmp
+++ b/platform/org.eclipse.platform/splash.bmp
Binary files differ