The flags /D_STATIC_CPPLIB and /D_DISABLE_DEPRECATE_STATIC_CPPLIB were required on Visual Studio 2010 to avoid bundling msvcp*.dll [1][2].
These flags do not work since Visual Studio 2012 [3].

These flags are initially added to common set of Visual Studio compiler flags when JavaFX is built.
Before JDK-8289174, these flags were then removed if JavaFX is built on Visual Studio 2010.
After JDK-8289174, these flags are always removed when JavaFX is built [4].

As the addition and removal of these flags are now effectively no-op, references to these flags can be removed.

[1] : https://github.com/openjdk/jfx/commit/07893972c2aeb3019b52953e1f264ec626260ba4#diff-84d1812ce010dfeff7339a1ce099c2f5aabc5195b068db589e16575ab9356b44R99
[2] : https://github.com/openjdk/jdk/commit/6f19ee9717b24d46016678f9ea770ecb40ff5d15#diff-49fea9c117888f52c338be983efd340e57588014ef247fd08047681559514fd0R571
[3] : https://mail.openjdk.org/pipermail/build-dev/2015-January/013970.html
[4] : https://github.com/openjdk/jfx/commit/a8f7850503043f616703fdfc8d0a26a00f47b7c8