Imported Upstream version 1.0.0.9910upstream/1.0.0.9910

1 files changed, 0 insertions, 58 deletions

diff --git a/src/mscorlib/corefx/System/IO/PathInternal.cs b/src/mscorlib/corefx/System/IO/PathInternal.cs
index ee67680df5..6b4c3b2d30 100644
--- a/src/mscorlib/corefx/System/IO/PathInternal.cs
+++ b/src/mscorlib/corefx/System/IO/PathInternal.cs
@@ -40,64 +40,6 @@ namespace System.IO
             if (HasIllegalCharacters(path))
                 throw new ArgumentException(SR.Argument_InvalidPathChars, nameof(path));
         }
-
-
-        /// <summary>
-        /// Returns true if the given StringBuilder starts with the given value.
-        /// </summary>
-        /// <param name="value">The string to compare against the start of the StringBuilder.</param>
-        internal static bool StartsWithOrdinal(this StringBuilder builder, string value)
-        {
-            if (value == null || builder.Length < value.Length)
-                return false;
-
-            for (int i = 0; i < value.Length; i++)
-            {
-                if (builder[i] != value[i]) return false;
-            }
-            return true;
-        }
-
-        /// <summary>
-        /// Returns true if the given string starts with the given value.
-        /// </summary>
-        /// <param name="value">The string to compare against the start of the source string.</param>
-        internal static bool StartsWithOrdinal(this string source, string value)
-        {
-            if (value == null || source.Length < value.Length)
-                return false;
-
-            return source.StartsWith(value, StringComparison.Ordinal);
-        }
-
-        /// <summary>
-        /// Trims the specified characters from the end of the StringBuilder.
-        /// </summary>
-        internal static StringBuilder TrimEnd(this StringBuilder builder, params char[] trimChars)
-        {
-            if (trimChars == null || trimChars.Length == 0)
-                return builder;
-
-            int end = builder.Length - 1;
-
-            for (; end >= 0; end--)
-            {
-                int i = 0;
-                char ch = builder[end];
-                for (; i < trimChars.Length; i++)
-                {
-                    if (trimChars[i] == ch) break;
-                }
-                if (i == trimChars.Length)
-                {
-                    // Not a trim char
-                    break;
-                }
-            }
-
-            builder.Length = end + 1;
-            return builder;
-        }
         
         /// <summary>
         /// Returns the start index of the filename