Strip dead per-language .slf entries from gGameLibaries

InitializeFileDatabase, the only reader of gGameLibaries[], is called
nowhere in the tree — VFS replaced this legacy loader. Delete the
7 #ifdef GERMAN/POLISH/DUTCH/ITALIAN/RUSSIAN/FRENCH/CHINESE entries
outright rather than runtime-selecting them.

NPC.h: two commented-out #if defined(CRIPPLED_VERSION)||defined(RUSSIAN)
triplets. AimMembers.cpp: two commented-out #ifdef POLISH character-remap
switch blocks. All already-dead. Verify grep for language macros outside
i18n/ now returns only unrelated hits (filename literal, dev-tool CLI flag,
stray comment, historical prose) — no #ifdef guards left.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

i18n/include/Ja2 Libs.h

@@ -30,30 +30,6 @@
 		LIBRARY_LOADSCREENS,
 		LIBRARY_INTRO,
 
-#ifdef GERMAN
-		LIBRARY_GERMAN_DATA,
-#endif
-
-#ifdef DUTCH
-		LIBRARY_DUTCH_DATA,
-#endif
-
-#ifdef POLISH
-		LIBRARY_POLISH_DATA,
-#endif
-
-#ifdef ITALIAN
-		LIBRARY_ITALIAN_DATA,
-#endif
-
-#ifdef RUSSIAN
-		LIBRARY_RUSSIAN_DATA,
-#endif
-
-#ifdef FRENCH
-		LIBRARY_FRENCH_DATA,
-#endif
-
 		NUMBER_OF_LIBRARIES
 	};