misc: update bulid instruction (#724)

README.md

@@ -37,7 +37,7 @@ The core features include:
 
 ### Method 1: With pip
 ```
-pip install --upgrade pip setuptools wheel
+pip install --upgrade pip
 pip install "sglang[all]"
 
 # Install FlashInfer CUDA kernels

benchmark/blog_v0_2/README.md

@@ -8,7 +8,7 @@
 git clone https://github.com/sgl-project/sglang.git
 cd sglang
 
-pip install --upgrade pip setuptools wheel
+pip install --upgrade pip
 pip install -e "python[all]"
 
 pip install flashinfer -i https://flashinfer.ai/whl/cu121/torch2.3/