remove powershell from Pulumi devcontainer

.devcontainer/python/Dockerfile

@@ -3,7 +3,6 @@ FROM python:${VARIANT}-buster
 
 # Set package versions
 ARG AZURE_CLI_VERSION="2.42.0"
-ARG PWSH_VERSION="7.3.6"
 ARG PULUMI_VERSION="3.80.0"
 
 RUN apt-get update \
@@ -23,21 +22,6 @@ ARG TARGETARCH
 RUN pip3 install azure-cli==${AZURE_CLI_VERSION}
 RUN pip3 install hatch
 
-# Install Powershell
-# Pull different binaries from Github depending on system architecture
-# The standard APT method currently only works for `amd64`
- RUN if [ "${TARGETARCH}" = "arm64" ]; \
-   then \
-     DEBARCH="arm64"; \
-   else \
-     DEBARCH="x86"; \
-   fi; \
-   curl -L -o /tmp/powershell.tar.gz https://github.com/PowerShell/PowerShell/releases/download/v${PWSH_VERSION}/powershell-${PWSH_VERSION}-linux-$DEBARCH.tar.gz \
-   && mkdir -p /opt/microsoft/powershell/7 \
-   && tar zxf /tmp/powershell.tar.gz -C /opt/microsoft/powershell/7 \
-   && chmod +x /opt/microsoft/powershell/7/pwsh \
-   && ln -s /opt/microsoft/powershell/7/pwsh /usr/bin/pwsh
-
 # Create non-root user and give them sudo access
 ARG USERNAME=deploydsh
 ARG USER_UID=1000
@@ -56,12 +40,5 @@ USER $USERNAME
 COPY ./docs/requirements.txt /build/requirements.txt
 RUN pip3 install -r /build/requirements.txt
 
-# Install/check needed powershell modules
-COPY ./deployment/CheckRequirements.ps1 /build/CheckRequirements.ps1
-COPY ./deployment/common/Logging.psm1 /build/common/Logging.psm1
-RUN pwsh -Command "& {Set-PSRepository -Name PSGallery -InstallationPolicy Trusted}" \
-  && pwsh -File /build/CheckRequirements.ps1 -InstallMissing \
-  && sudo rm -rf /build/
-
 # Set PATH for pulumi - pulumi installed as feature to work round installing as root
 ENV PATH=$PATH:/home/${USERNAME}/.pulumi/bin