Revert "dev: add pixi setup for reproducible environments [no-ci] (NVIDIA#1066)"

This reverts commit 868fa53.

Author: leofang

.gitattributes

@@ -7,5 +7,3 @@ cuda/_version.py export-subst
 *.hpp binary
 # git should not convert line endings in PNG files
 *.png binary
-# SCM syntax highlighting & preventing 3-way merges
-pixi.lock merge=binary linguist-language=YAML linguist-generated=true

.gitignore

@@ -182,7 +182,3 @@ cython_debug/
 
 # Dont ignore
 !.github/actions/build/
-# pixi environments
-.pixi/*
-!.pixi/config.toml
-.gdb_history

.pre-commit-config.yaml

@@ -24,7 +24,6 @@ repos:
   - repo: local
     hooks:
       - id: check-spdx
-        exclude: 'pixi\.lock$'
         name: Check SPDX Headers
         entry: python ./toolshed/check_spdx.py
         language: python
@@ -52,7 +51,7 @@ repos:
     - id: check-yaml
     - id: debug-statements
     - id: end-of-file-fixer
-      exclude: &gen_exclude '^(?:cuda_bindings/cuda/bindings/.*\.in?|cuda_bindings/docs/source/module/.*\.rst?|pixi\.lock)$'
+      exclude: &gen_exclude '^(?:cuda_bindings/cuda/bindings/.*\.in?|cuda_bindings/docs/source/module/.*\.rst?)$'
     - id: mixed-line-ending
     - id: trailing-whitespace
       exclude: *gen_exclude