Don't document build dependencies

[alexcrichton]

They're not actually relevant to the documentation, so omit them.

[rust-highfive]

r? @wycats

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[alexcrichton]

r? @brson

[steveklabnik]

👍

[brson]

@bors r+

[bors]

📌 Commit d2748bf has been approved by brson

[bors]

⌛ Testing commit d2748bf with merge 1169921...

[bors]

💔 Test failed - cargo-win-gnu-32

[alexcrichton]

@bors: retry

On Tue, Sep 8, 2015 at 1:32 PM, bors notifications@github.com wrote:

[image: 💔] Test failed - cargo-win-gnu-32
http://buildbot.rust-lang.org/builders/cargo-win-gnu-32/builds/169

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Reply to this email directly or view it on GitHub
#1974 (comment).

[bors]

🔒 Merge conflict

[bors]

☔ The latest upstream changes (presumably #1973) made this pull request unmergeable. Please resolve the merge conflicts.

[alexcrichton]

@bors: r=brson d2748bf299323091038d3c879dc4c2c7a9944d00

[bors]

🙀 d2748bf299323091038d3c879dc4c2c7a9944d00 is not a valid commit SHA. Please try again with b43d286.

[alexcrichton]

@bors: r=brson b43d286

[bors]

⌛ Testing commit b43d286 with merge df0aed6...

[bors]

💔 Test failed - cargo-win-msvc-32

[alexcrichton]

@bors: retry

On Tue, Sep 8, 2015 at 1:58 PM, bors notifications@github.com wrote:

[image: 💔] Test failed - cargo-win-msvc-32
http://buildbot.rust-lang.org/builders/cargo-win-msvc-32/builds/91

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#1974 (comment).

[bors]

⚡ Previous build results for cargo-linux-32, cargo-linux-64, cargo-mac-32, cargo-mac-64, cargo-win-gnu-32, cargo-win-gnu-64, cargo-win-msvc-64 are reusable. Rebuilding only cargo-win-msvc-32...

[bors]

☀️ Test successful - cargo-linux-32, cargo-linux-64, cargo-mac-32, cargo-mac-64, cargo-win-gnu-32, cargo-win-gnu-64, cargo-win-msvc-32, cargo-win-msvc-64