Check process success locally for adb commands

Remove sc_process_check_success() from the process API, it is too
specific.

app/src/util/process_intr.c

@@ -1,26 +1,5 @@
 #include "process_intr.h"
 
-bool
-sc_process_check_success_intr(struct sc_intr *intr, sc_pid pid,
-                              const char *name, bool close) {
-    if (!sc_intr_set_process(intr, pid)) {
-        // Already interrupted
-        return false;
-    }
-
-    // Always pass close=false, interrupting would be racy otherwise
-    bool ret = sc_process_check_success(pid, name, false);
-
-    sc_intr_set_process(intr, SC_PROCESS_NONE);
-
-    if (close) {
-        // Close separately
-        sc_process_close(pid);
-    }
-
-    return ret;
-}
-
 ssize_t
 sc_pipe_read_intr(struct sc_intr *intr, sc_pid pid, sc_pipe pipe, char *data,
                   size_t len) {