Revert "Use Util::keep_if()"

This reverts commit 3739e8e0b998b14c0f320c21618057e50698c51d.

1 files changed, 4 insertions, 5 deletions

diff --git a/toolsrc/src/commands_integrate.cpp b/toolsrc/src/commands_integrate.cpp
index e51b1637e..256c3ad1d 100644
--- a/toolsrc/src/commands_integrate.cpp
+++ b/toolsrc/src/commands_integrate.cpp
@@ -3,7 +3,6 @@
 #include "vcpkg_Checks.h"
 #include "vcpkg_System.h"
 #include "vcpkg_Files.h"
-#include "vcpkg_Util.h"
 
 namespace vcpkg::Commands::Integrate
 {
@@ -67,10 +66,10 @@ namespace vcpkg::Commands::Integrate
         dir_id.erase(1, 1); // Erasing the ":"
 
         // NuGet id cannot have invalid characters. We will only use alphanumeric and dot.
-        Util::keep_if(dir_id, [](char c)
-                      {
-                          return isalnum(c) || (c == '.');
-                      });
+        dir_id.erase(std::remove_if(dir_id.begin(), dir_id.end(), [](char c)
+                                    {
+                                        return !isalnum(c) && (c != '.');
+                                    }), dir_id.end());
 
         const std::string nuget_id = "vcpkg." + dir_id;
         return nuget_id;