libmodprobe: remove unused EnableVerbose() method

modprobe command no longer uses EnableVerbose, opting to do the
associated operations directly.

Test: compile
Change-Id: Iffc8324f37f34de4eeb9a27e92fdf5524afa2220

Author: Mark Salyzyn

libmodprobe/include/modprobe/modprobe.h

@@ -37,7 +37,6 @@ class Modprobe {
     void ResetModuleCount() { module_count_ = 0; }
     int GetModuleCount() { return module_count_; }
     void EnableBlocklist(bool enable);
-    void EnableVerbose(bool enable);
 
   private:
     std::string MakeCanonical(const std::string& module_path);

libmodprobe/libmodprobe.cpp

@@ -343,14 +343,6 @@ void Modprobe::EnableBlocklist(bool enable) {
     blocklist_enabled = enable;
 }
 
-void Modprobe::EnableVerbose(bool enable) {
-    if (enable) {
-        android::base::SetMinimumLogSeverity(android::base::VERBOSE);
-    } else {
-        android::base::SetMinimumLogSeverity(android::base::INFO);
-    }
-}
-
 std::vector<std::string> Modprobe::GetDependencies(const std::string& module) {
     auto it = module_deps_.find(module);
     if (it == module_deps_.end()) {