Use lockfiles for conda

scripts/conda-requirements.yaml

@@ -1,57 +0,0 @@
-channels:
-  - ucb-bar
-  - conda-forge
-  - nodefaults
-dependencies:
-  # firemarshal deps
-  - python=3.9
-  - rsync
-  - psutil
-  - doit=0.35.0
-  - gitpython
-  - humanfriendly
-  - e2fsprogs
-  - ctags
-  - bison
-  - flex
-  - expat
-  # current version of buildroot won't build with make 4.3 https://github.com/firesim/FireMarshal/issues/236
-  - make!=4.3
-  - pyyaml
-  - unzip
-  - readline
-  - coreutils
-  - lzop
-  - qemu # from ucb-bar channel - https://github.com/ucb-bar/qemu-feedstock
-
-  # doc requirements
-  - sphinx
-  - pygments
-  - sphinx-autobuild
-  - sphinx_rtd_theme
-  - docutils
-
-  # misc. c/c++ compilers + related
-  - gcc==10.* # pinned for libelf/libdwarf builds
-  - gxx==10.* # pinned for libelf/libdwarf builds
-  - conda-gcc-specs
-  - binutils
-
-  # rocket-chip deps
-  - sbt
-  - openjdk
-  - dtc
-  - verilator==4.034
-
-  # chipyard deps
-  - dromajo # from ucb-bar channel - https://github.com/riscv-boom/dromajo
-
-  # other misc. deps
-  - ca-certificates
-  - vim
-  - gengetopt
-  - cmake
-  - git
-  - wget
-  - sed
-  - autoconf