[sql] Rewrite sqlite patching "system".

third_party/sqlite/misalignment.patch

Index: third_party/sqlite/misalignment.patch
diff --git a/third_party/sqlite/misalignment.patch b/third_party/sqlite/misalignment.patch
deleted file mode 100644
index e42120879248d59f30740a40b1b624a31ffa5e6f..0000000000000000000000000000000000000000
--- a/third_party/sqlite/misalignment.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-diff --git ext/fts2/fts2_icu.c ext/fts2/fts2_icu.c
-index 6b9687e..a8b8359 100644
---- ext/fts2/fts2_icu.c
-+++ ext/fts2/fts2_icu.c
-@@ -118,15 +118,15 @@ static int icuOpen(
-   nChar = nInput+1;
-   pCsr = (IcuCursor *)sqlite3_malloc(
-       sizeof(IcuCursor) +                /* IcuCursor */
--      nChar * sizeof(UChar) +            /* IcuCursor.aChar[] */
--      (nChar+1) * sizeof(int)            /* IcuCursor.aOffset[] */
-+      (nChar+1) * sizeof(int) +          /* IcuCursor.aOffset[] */
-+      nChar * sizeof(UChar)              /* IcuCursor.aChar[] */
-   );
-   if( !pCsr ){
-     return SQLITE_NOMEM;
-   }
-   memset(pCsr, 0, sizeof(IcuCursor));
--  pCsr->aChar = (UChar *)&pCsr[1];
--  pCsr->aOffset = (int *)&pCsr->aChar[nChar];
-+  pCsr->aOffset = (int *)&pCsr[1];
-+  pCsr->aChar = (UChar *)&pCsr->aOffset[nChar+1];
- 
-   pCsr->aOffset[iOut] = iInput;
-   U8_NEXT(zInput, iInput, nInput, c); 
-diff --git ext/fts3/fts3_icu.c ext/fts3/fts3_icu.c
-index a75b14a..e406168 100644
---- ext/fts3/fts3_icu.c
-+++ ext/fts3/fts3_icu.c
-@@ -118,15 +118,15 @@ static int icuOpen(
-   nChar = nInput+1;
-   pCsr = (IcuCursor *)sqlite3_malloc(
-       sizeof(IcuCursor) +                /* IcuCursor */
--      nChar * sizeof(UChar) +            /* IcuCursor.aChar[] */
--      (nChar+1) * sizeof(int)            /* IcuCursor.aOffset[] */
-+      (nChar+1) * sizeof(int) +          /* IcuCursor.aOffset[] */
-+      nChar * sizeof(UChar)              /* IcuCursor.aChar[] */
-   );
-   if( !pCsr ){
-     return SQLITE_NOMEM;
-   }
-   memset(pCsr, 0, sizeof(IcuCursor));
--  pCsr->aChar = (UChar *)&pCsr[1];
--  pCsr->aOffset = (int *)&pCsr->aChar[nChar];
-+  pCsr->aOffset = (int *)&pCsr[1];
-+  pCsr->aChar = (UChar *)&pCsr->aOffset[nChar+1];
- 
-   pCsr->aOffset[iOut] = iInput;
-   U8_NEXT(zInput, iInput, nInput, c);