Drop legacy targets

.gitignore

@@ -1,56 +1,16 @@
-# Nuget packages
-*.nupkg
-
 # Maven build folders
 target/
 # ... but not code generation targets
 !tool/src/org/antlr/v5/codegen/target/
 
-# Node.js (npm and typings) cached dependencies
-node_modules/
-typings/
-
-# Ant build folders
-build/
-dist/
-lib/
-user.build.properties
-
 # MacOSX files
 .DS_Store
 
-## Python, selected lines from https://raw.githubusercontent.com/github/gitignore/master/Python.gitignore
-# Byte-compiled / optimized / DLL files
-__pycache__/
-*.py[cod]
-*$py.class
-# Build results
-*.egg-info/
-
-## CSharp and VisualStudio, selected lines from https://raw.githubusercontent.com/github/gitignore/master/VisualStudio.gitignore
-# User-specific files
-*.suo
-*.user
-*.userosscache
-*.sln.docstates
-
 # User-specific files (MonoDevelop/Xamarin Studio/Visual Studio)
 *.userprefs
 .vs/
 project.lock.json
 
-# Build results
-[Dd]ebug/
-[Dd]ebugPublic/
-[Rr]elease/
-[Rr]eleases/
-x64/
-x86/
-bld/
-[Bb]in/
-[Oo]bj/
-[Ll]og/
-
 # NetBeans user configuration files
 nbactions*.xml
 /nbproject/private/
@@ -87,55 +47,19 @@ tmp/
 **/generatedCode/*.tokens
 **/generatedCode/*.bak
 
-# Configurable build files
-bilder.py
-bilder.pyc
-bild.log
-
-bild_output.txt
-runtime/Cpp/demo/generated
-xcuserdata
 *.jar
 .vscode
 
 # VSCode Java plugin temporary files
 javac-services.0.log
 javac-services.0.log.lck
 
-# Don't ignore python tests
-!runtime/Python3/test/
-Antlr4.sln
-runtime/PHP
-
 # Swift binaries
 .build/
 
 # Code coverage reports
 coverage/
 
-# Cpp generated build files
-runtime/Cpp/CMakeCache.txt
-runtime/Cpp/CMakeFiles/
-runtime/Cpp/CPackConfig.cmake
-runtime/Cpp/CPackSourceConfig.cmake
-runtime/Cpp/CTestTestfile.cmake
-runtime/Cpp/Makefile
-runtime/Cpp/_deps/
-runtime/Cpp/cmake_install.cmake
-runtime/Cpp/runtime/CMakeFiles/
-runtime/Cpp/runtime/CTestTestfile.cmake
-runtime/Cpp/runtime/Makefile
-runtime/Cpp/runtime/antlr4_tests
-runtime/Cpp/runtime/antlr4_tests\[1]_include.cmake
-runtime/Cpp/runtime/antlr4_tests\[1]_tests.cmake
-runtime/Cpp/runtime/cmake_install.cmake
-runtime/Cpp/runtime/libantlr4-runtime.4.10.1.dylib
-runtime/Cpp/runtime/libantlr4-runtime.a
-runtime/Cpp/runtime/libantlr4-runtime.dylib
-/runtime/Cpp/runtime/libantlr4-runtime.4.12.0.dylib
-/runtime/Cpp/runtime/libantlr4-runtime.4.13.0.dylib
-
 # Go test and performance trace files
-**/*.pprof
 runtime-testsuite/gen
 tool-testsuite/gen