Reverts r183466: "Perform dynamic alignment computations..."

This introduces bugs in TemplateSpecializationTypeLoc's angle bracket
locations.

Regression test follows in a subsequent commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183513 91177308-0d34-0410-b5e6-96231b3b80d8
Adds a test that verifies angle bracket locations.

Regression test to make sure TemplateSpecializationTypeLocs have the
correct locations for angle brackets.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@183514 91177308-0d34-0410-b5e6-96231b3b80d8