Stop building Intel binaries for swift_glass_client.dotslash.py

Summary:
**tl;dr: Accept this diff to stop shipping Intel Mac Binaries since:**
 - **Nearly much everyone is on Apple Silicon Macs**
 - **We'll stop supporting Intel Macs soon: https://fb.workplace.com/groups/iosfuture/posts/31401944746094074**
 - **You'll get faster deploys (since you don't have to build Intel binaries)**

Do _not_ accept this diff if your customers are still using Intel Mac binaries. However, you'll need to address this manually before June 2026: https://fb.workplace.com/groups/iosfuture/posts/31401944746094074.

# What is this diff?

Currently, this config builds binaries for both Intel and Apple Silicon Macs. However, across all DotSlash + MSDK + SRConveyor configs, 99.8% of actual usages have been on Apple Silicon Macs.

We should stops building Intel Mac Binaries since DevInfra + FOA will no longer support Intel Macs soon: https://fb.workplace.com/groups/iosfuture/posts/30705795575708998.

This diff stops building Intel Mac binaries for this config.

# Is this diff safe?

The vast majority of developers and users are on Apple Silicon Macs. This should be a no-op, except you'll get the time and CIDU savings of no longer having to build Intel Mac binaries.

# What if this breaks?

In this highly-unlikely case, simply revert this diff. Then trigger another DotSlash, MSDK, or SRConveyor build.

# Questions?
 - Put your question in the comments
 - Send this diff Back to Author.

Reviewed By: Wilfred

Differential Revision: D101079354

fbshipit-source-id: cf3fceb523f4d8072f0969e3e9071aadde4870b9

Author: ericweb2

glean/client/swift/msdk/swift_glass_client.dotslash.py

@@ -14,7 +14,6 @@
     install_platforms={
         dotslash.InstallPlatform.LINUX_X86_64,
         dotslash.InstallPlatform.LINUX_AARCH64,
-        dotslash.InstallPlatform.MAC,
         dotslash.InstallPlatform.MAC_AARCH64,
     },
     oncall="swift_lsp",