Remove unused but set variables

Discovered by unused-but-set-variable diagnostics.

Test: build
Bug: 197240255
Change-Id: I32a1185f9714848c91860fbaa76521d490c842b9

tools/aapt/AaptAssets.cpp

@@ -319,12 +319,10 @@ int AaptLocaleValue::initFromDirName(const Vector<String8>& parts, const int sta
 
             // The second subtag can either be a script or a region code.
             // If its size is 4, it's a script code, else it's a region code.
-            bool hasRegion = false;
             if (subtags[1].size() == 4) {
                 setScript(subtags[1]);
             } else if (subtags[1].size() == 2 || subtags[1].size() == 3) {
                 setRegion(subtags[1]);
-                hasRegion = true;
             } else {
                 fprintf(stderr, "ERROR: Invalid BCP 47 tag in directory name %s\n", part.string());
                 return -1;

tools/aapt/ResourceTable.cpp

@@ -2475,11 +2475,10 @@ void ResourceTable::reportError(void* accessorCookie, const char* fmt, ...)
 {
     if (accessorCookie != NULL && fmt != NULL) {
         AccessorCookie* ac = (AccessorCookie*)accessorCookie;
-        int retval=0;
         char buf[1024];
         va_list ap;
         va_start(ap, fmt);
-        retval = vsnprintf(buf, sizeof(buf), fmt, ap);
+        vsnprintf(buf, sizeof(buf), fmt, ap);
         va_end(ap);
         ac->sourcePos.error("Error: %s (at '%s' with value '%s').\n",
                             buf, ac->attr.string(), ac->value.string());