Remove some dead links.

BUG=none
TBR=ajwong@chromium.org

Review URL: https://codereview.chromium.org/592423004

Cr-Commit-Position: refs/heads/master@{#296242}

styleguide/c++/c++11.html

@@ -165,9 +165,7 @@ C++11 generalized attributes</a></td>
 <td>Automatic Types</td>
 <td><code>auto</code></td>
 <td>Automatic type deduction</td>
-<td><a href="http://go/totw:4">
-Tip of the Week #4: Use <code>const auto&</code> and
-<code>auto</code> to replace complex declarations</a></td>
+<td>TODO: documentation link</td>
 <td><a
 href="https://google-styleguide.googlecode.com/svn/trunk/cppguide.html#auto">Google
 Style Guide on <code>auto</code></a></td>
@@ -177,8 +175,7 @@ Style Guide on <code>auto</code></a></td>
 <td>Constant Expressions</td>
 <td><code>constexpr</code></td>
 <td>Compile-time constant expressions</td>
-<td><a href="http://go/totw:57">
-Tip of the Week #57: <code>constexpr</code> is forever</a></td>
+<td>TODO: documentation link</td>
 <td>Not supported in MSVS2013. <a
 href="https://google-styleguide.googlecode.com/svn/trunk/cppguide.html#constexpr">Google
 Style Guide on <code>constexpr</code></a></td>
@@ -261,8 +258,7 @@ explicit specifier</a></td>
 <td>Final Declarations</td>
 <td><code>final</code></td>
 <td>Indicates that a class or function is final and cannot be overridden</td>
-<td><a href="http://go/totw:54">
-Tip of the Week #54: Controlling Your Inheritance</a></td>
+<td>TODO: documentation link</td>
 <td><code>FINAL</code> is already widely used in the codebase.</td>
 </tr>
 
@@ -290,8 +286,7 @@ synthetic function such as a copy constructor</td>
 <td><code><i>type</i> <i>name</i> { [<i>value</i> ..., <i>value</i>]};</code></td>
 <td>Allows any object of primitive, aggregate or class
 type to be initialized using brace syntax</td>
-<td><a href="http://go/totw:58">
-Tip of the Week #58: Initializer Lists and the Uniform Initialization Syntax</a></td>
+<td>TODO: documentation link</td>
 <td></td>
 </tr>
 
@@ -330,9 +325,7 @@ class C {<br />
   C()  // copy-initializes <i>var</i><br/>
 </code>
 <td>Allows non-static class members to be initialized at their definitions (outside constructors)</td>
-<td><a href="http://go/totw:61">
-Tip of the Week #58: Non-Static Class Member Initializers</a> and
-<a href="http://en.cppreference.com/w/cpp/language/data_members">
+<td><a href="http://en.cppreference.com/w/cpp/language/data_members">
 Non-static data members</a></td>
 <td></td>
 </tr>
@@ -341,8 +334,7 @@ Non-static data members</a></td>
 <td>Null Pointer Constant</td>
 <td><code>nullptr</code></td>
 <td>Declares a type-safe null pointer</td>
-<td><a href="http://go/totw:39">
-Tip of the Week #39: Prefer C++11’s nullptr to NULL or 0</a></td>
+<td>TODO: documentation link</td>
 <td><a href="https://google-styleguide.googlecode.com/svn/trunk/cppguide.html#0_and_nullptr/NULL">Google Style Guidwe</a>.
 </td>
 </tr>
@@ -351,8 +343,7 @@ Tip of the Week #39: Prefer C++11’s nullptr to NULL or 0</a></td>
 <td>Overrides</td>
 <td><code>override</code></td>
 <td>Indicates that a class or function overrides a base implementation</td>
-<td><a href="http://go/totw:54">
-Tip of the Week #54: Controlling Your Inheritance</a></td>
+<td>TODO: documentation link</td>
 <td><code>OVERRIDE</code> is already widely used in the codebase.</td>
 </tr>
 
@@ -704,8 +695,7 @@ and <a href="http://en.cppreference.com/w/cpp/iterator/prev">std::prev</a>
 <td>Initializer Lists</td>
 <td><code>std::initializer_list&lt;T&gt;</code></td>
 <td>Allows containers to be initialized with aggregate elements</td>
-<td><a href="http://go/totw:58">
-Tip of the Week #58: Initializer Lists and the Uniform Initialization Syntax</a></td>
+<td>TODO: documentation link</td>
 <td></td>
 </tr>
 
@@ -817,9 +807,7 @@ std::stof, std::stod, std::stold</a> </td>
 <td>STL Algorithms</td>
 <td>Functions within <code>&lt;algorithm&gt;</code>.</td>
 <td>Enhancements to the set of STL algorithms</td>
-<td><a href="http://go/totw:21">
-Tip of the Week #21: New C++11 STL Algorithms</a>. See
-the <a href="http://en.cppreference.com/w/cpp/algorithm">
+<td>See the <a href="http://en.cppreference.com/w/cpp/algorithm">
 Algorithms library</a> for a complete list.</td>
 <td></td>
 </tr>