Remove PragmaRecorder.

The PragmaRecorder class was acting as a catch-all for pragmas not
recognized by our collection of RS*PragmaHandler classes.  It was
doing nothing other than rudimentary syntax checking and permitting
all pragmas to flow through the compilation process without clang
flagging them as unrecognized under -Wall.

Change-Id: I4a4c84c6e1114ac1e5454b3a06cf96e05c34a783
10 files changed