docs: remove needless scripts

.github/workflows/macos.yml

@@ -19,7 +19,6 @@ jobs:
           fetch-depth: 2147483647
       - run: ./scripts/install_zig.sh
       - run: ./zig/zig build test
-      - run: ./scripts/install.sh
 
   c_sample:
     strategy:

README.md

@@ -22,7 +22,7 @@ Want to build from source locally?
 ```console
 git clone https://github.com/tigerbeetle/tigerbeetle && cd tigerbeetle
 ./scripts/install_zig.sh # or .bat if you're on Windows.
-zig/zig build install
+zig/zig build
 ./tigerbeetle version
 ```
 
@@ -172,22 +172,6 @@ Here are a few key pages you might be interested in:
 * [Subscribe to our monthly newsletter for the backstory on recent database changes.](https://mailchi.mp/8e9fa0f36056/subscribe-to-tigerbeetle)
 * [Check out past and upcoming talks.](/docs/TALKS.md)
 
-## Benchmarks
-
-First grab the sources and run the setup script:
-
-```console
-git clone https://github.com/tigerbeetle/tigerbeetle.git
-cd tigerbeetle
-scripts/install.sh
-```
-
-With TigerBeetle installed, you are ready to benchmark!
-
-```console
-./tigerbeetle benchmark
-```
-
 ## Contributing
 
 Read [docs/HACKING.md](docs/HACKING.md).