[sqlite] Remove obsolete reference version 3.8.7.4.

third_party/sqlite/sqlite-src-3080704/tool/warnings.sh

Index: third_party/sqlite/sqlite-src-3080704/tool/warnings.sh
diff --git a/third_party/sqlite/sqlite-src-3080704/tool/warnings.sh b/third_party/sqlite/sqlite-src-3080704/tool/warnings.sh
deleted file mode 100644
index 5d71361138d7d19475d852bd3a69e5b80776c266..0000000000000000000000000000000000000000
--- a/third_party/sqlite/sqlite-src-3080704/tool/warnings.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#/bin/sh
-#
-# Run this script in a directory with a working makefile to check for 
-# compiler warnings in SQLite.
-#
-rm -f sqlite3.c
-make sqlite3.c
-echo '********** No optimizations.  Includes FTS4 and RTREE *********'
-gcc -c -Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long -std=c89 \
-      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_RTREE \
-      sqlite3.c
-echo '********** No optimizations. ENABLE_STAT4. THREADSAFE=0 *******'
-gcc -c -Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long -std=c89 \
-      -ansi -DSQLITE_ENABLE_STAT4 -DSQLITE_THREADSAFE=0 \
-      sqlite3.c
-echo '********** Optimized -O3.  Includes FTS4 and RTREE ************'
-gcc -O3 -c -Wshadow -Wall -Wextra -pedantic-errors -Wno-long-long -std=c89 \
-      -ansi -DHAVE_STDINT_H -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_RTREE \
-      sqlite3.c