Remove Cadence & Synopsys plugins (#1410)

* remove Cadence & Synopsys plugins from docs and scripts

* update conda-locks

scripts/init-submodules-no-riscv-tools-nolog.sh

@@ -106,8 +106,6 @@ cd "$RDIR"
             software/coremark \
             software/firemarshal \
             software/spec2017 \
-            vlsi/hammer-cadence-plugins \
-            vlsi/hammer-synopsys-plugins \
             vlsi/hammer-mentor-plugins \
             fpga/fpga-shells
         do

scripts/init-vlsi.sh

@@ -12,10 +12,6 @@ fi
 
 # Initialize HAMMER CAD-plugins
 if [[ $1 != *openroad* ]] && [[ $2 != *openroad* ]]; then
-    git submodule update --init --recursive vlsi/hammer-cadence-plugins
-    pip install -e vlsi/hammer-cadence-plugins
-    git submodule update --init --recursive vlsi/hammer-synopsys-plugins
-    pip install -e vlsi/hammer-synopsys-plugins
     git submodule update --init --recursive vlsi/hammer-mentor-plugins
     pip install -e vlsi/hammer-mentor-plugins
 fi