Fix #7874 : [MSYS2] remove GLM from PKGCONFIG libs (#7885)

As of GLM 1.0, .pc file not provided anymore. However, it was referencing standard include path.
Should work also with previous version of GLM.

Author: oxillo

libs/openFrameworksCompiled/project/msys2/config.msys2.default.mk

@@ -248,7 +248,6 @@ PLATFORM_PKG_CONFIG_LIBRARIES += openssl
 PLATFORM_PKG_CONFIG_LIBRARIES += freetype2
 PLATFORM_PKG_CONFIG_LIBRARIES += glew
 PLATFORM_PKG_CONFIG_LIBRARIES += glfw3
-PLATFORM_PKG_CONFIG_LIBRARIES += glm
 #PLATFORM_PKG_CONFIG_LIBRARIES += gstreamer-1.0
 PLATFORM_PKG_CONFIG_LIBRARIES += libcurl
 PLATFORM_PKG_CONFIG_LIBRARIES += liburiparser