ALL: Remove obsolete register keyword

The register keyword was deprecated from the C++11 standard,
<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4193.html#809>,
and removed from the C++17 standard,
<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4340>, so
cannot exist in a well-formed C++17 program.

It has never done anything in GCC
<https://gcc.gnu.org/ml/gcc/2010-05/msg00113.html>
and because of the way it is specified in the standard, it is “as
meaningful as whitespace”
<http://www.drdobbs.com/keywords-that-arent-or-comments-by-anoth/184403859>.

The one remaining use of the register keyword is in the DS backend,
where it is used to create a local register variable using the
non-standard GCC Extended Asm feature.

Closes gh-1079.

2 files changed, 3 insertions, 3 deletions

diff --git a/engines/cge/cge_main.cpp b/engines/cge/cge_main.cpp
index e738b6ebb3..b60f201cb0 100644
--- a/engines/cge/cge_main.cpp
+++ b/engines/cge/cge_main.cpp
@@ -378,7 +378,7 @@ void CGEEngine::syncGame(Common::SeekableReadStream *readStream, Common::WriteSt
 
 	if (s.isSaving()) {
 		for (int i = 0; i < kPocketNX; i++) {
-			register Sprite *pocSpr = _pocket[i];
+			Sprite *pocSpr = _pocket[i];
 			_pocref[i] = (pocSpr) ? pocSpr->_ref : -1;
 		}
 
@@ -417,7 +417,7 @@ void CGEEngine::syncGame(Common::SeekableReadStream *readStream, Common::WriteSt
 			}
 
 			for (int i = 0; i < kPocketNX; i++) {
-				register int r = _pocref[i];
+				int r = _pocref[i];
 				_pocket[i] = (r < 0) ? NULL : _vga->_spareQ->locate(r);
 			}
 		}
diff --git a/engines/cge/snail.cpp b/engines/cge/snail.cpp
index bfeb436e94..f6d02304bc 100644
--- a/engines/cge/snail.cpp
+++ b/engines/cge/snail.cpp
@@ -1192,7 +1192,7 @@ void CGEEngine::snFlash(bool on) {
 		if (pal) {
 			memcpy(pal, _vga->_sysPal, kPalSize);
 			for (int i = 0; i < kPalCount; i++) {
-				register int c;
+				int c;
 				c = pal[i]._r << 1;
 				pal[i]._r = (c < 64) ? c : 63;
 				c = pal[i]._g << 1;