Remove invalid SoftwareSourceCode properties (applicationCategory, operatingSystem)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sbryngelson

docs/index.html

@@ -31,8 +31,6 @@
       "alternateName": "Multi-Component Flow Code",
       "description": "Open-source exascale multiphase flow solver. 2025 Gordon Bell Prize Finalist. Scales to 200+ trillion grid points on 43,000+ GPUs.",
       "url": "https://mflowcode.github.io",
-      "applicationCategory": "Scientific Computing",
-      "operatingSystem": "Linux, macOS",
       "license": "https://opensource.org/licenses/MIT",
       "programmingLanguage": ["Fortran", "Python"],
       "codeRepository": "https://github.com/MFlowCode/MFC",