remove superfluous build-frankenphp script

Author: henderkes

.gitignore

@@ -36,7 +36,6 @@ packlib_files.txt
 !/bin/setup-runtime*
 !/bin/spc-alpine-docker
 !/bin/php-cs-fixer-wrapper
-!/bin/build-static-frankenphp
 
 # exclude windows build tools
 /php-sdk-binary-tools/