widl: Update the relocatability patch to remove an unused variable

The patch removes the only use of the variable i here, thus remove
it to get rid of one build time warning.

Signed-off-by: Martin Storsjö <martin@martin.st>
diff --git a/mingw-w64-tools/widl/patches/0001-relocatable.patch b/mingw-w64-tools/widl/patches/0001-relocatable.patch
index 84f3058..a0406ea 100644
--- a/mingw-w64-tools/widl/patches/0001-relocatable.patch
+++ b/mingw-w64-tools/widl/patches/0001-relocatable.patch
@@ -1,5 +1,5 @@
 diff --git a/mingw-w64-tools/widl/src/widl.c b/mingw-w64-tools/widl/src/widl.c
-index a99eed4e..38b9d864 100644
+index a99eed4e9..69cb4b628 100644
 --- a/mingw-w64-tools/widl/src/widl.c
 +++ b/mingw-w64-tools/widl/src/widl.c
 @@ -42,6 +42,7 @@
@@ -10,6 +10,15 @@
  
  static const char usage[] =
  "Usage: widl [options...] infile.idl\n"
+@@ -596,7 +597,7 @@ static void init_argv0_dir( const char *argv0 )
+ 
+ int main(int argc,char *argv[])
+ {
+-  int i, optc;
++  int optc;
+   int ret = 0;
+   int opti = 0;
+   char *output_name = NULL;
 @@ -772,19 +773,12 @@ int main(int argc,char *argv[])
  
    if (stdinc)
diff --git a/mingw-w64-tools/widl/src/widl.c b/mingw-w64-tools/widl/src/widl.c
index 38b9d86..69cb4b6 100644
--- a/mingw-w64-tools/widl/src/widl.c
+++ b/mingw-w64-tools/widl/src/widl.c
@@ -597,7 +597,7 @@
 
 int main(int argc,char *argv[])
 {
-  int i, optc;
+  int optc;
   int ret = 0;
   int opti = 0;
   char *output_name = NULL;