delete duplicated code snippets

Author: gewarren

docs/core/tutorials/library-with-visual-studio-code.md

@@ -58,7 +58,7 @@ Start by creating a .NET class library project named "StringLibrary" and an asso
 
 1. Open *Class1.cs* and replace the code with the following code.
 
-   :::code language="csharp" source="./snippets/library-with-visual-studio-6-0/csharp/StringLibrary/Class1.cs":::
+   :::code language="csharp" source="./snippets/library-with-visual-studio/csharp/StringLibrary/Class1.cs":::
 
    The class library, `UtilityLibraries.StringLibrary`, contains a method named `StartsWithUpper`. This method returns a <xref:System.Boolean> value that indicates whether the current string instance begins with an uppercase character. The Unicode standard distinguishes uppercase characters from lowercase characters. The <xref:System.Char.IsUpper(System.Char)?displayProperty=nameWithType> method returns `true` if a character is uppercase.
 
@@ -96,7 +96,7 @@ Add a console application that uses the class library. The app will prompt the u
 
 1. Open *ShowCase/Program.cs* and replace all of the code with the following code.
 
-   :::code language="csharp" source="./snippets/library-with-visual-studio-6-0/csharp/ShowCase/Program.cs":::
+   :::code language="csharp" source="./snippets/library-with-visual-studio/csharp/ShowCase/Program.cs":::
 
    The code uses the `row` variable to maintain a count of the number of rows of data written to the console window. Whenever it's greater than or equal to 25, the code clears the console window and displays a message to the user.
 

docs/core/tutorials/library-with-visual-studio.md

@@ -62,7 +62,7 @@ To create the blank solution:
 
 1. Replace the code in the code window for *Class1.cs*  or *Class1.vb* with the following code, and save the file. If the language you want to use isn't shown, change the language selector at the top of the page.
 
-   :::code language="csharp" source="./snippets/library-with-visual-studio-6-0/csharp/StringLibrary/Class1.cs":::
+   :::code language="csharp" source="./snippets/library-with-visual-studio/csharp/StringLibrary/Class1.cs":::
    :::code language="vb" source="./snippets/library-with-visual-studio/vb/StringLibrary/Class1.vb":::
 
    The class library, `UtilityLibraries.StringLibrary`, contains a method named `StartsWithUpper`. This method returns a <xref:System.Boolean> value that indicates whether the current string instance begins with an uppercase character. The Unicode standard distinguishes uppercase characters from lowercase characters. The <xref:System.Char.IsUpper(System.Char)?displayProperty=nameWithType> method returns `true` if a character is uppercase.
@@ -89,7 +89,7 @@ Add a console application that uses the class library. The app will prompt the u
 
 1. In the code window for the *Program.cs* or *Program.vb* file, replace all of the code with the following code.
 
-   :::code language="csharp" source="./snippets/library-with-visual-studio-6-0/csharp/ShowCase/Program.cs":::
+   :::code language="csharp" source="./snippets/library-with-visual-studio/csharp/ShowCase/Program.cs":::
    :::code language="vb" source="./snippets/library-with-visual-studio/vb/ShowCase/Program.vb":::
 
    The code uses the `row` variable to maintain a count of the number of rows of data written to the console window. Whenever it's greater than or equal to 25, the code clears the console window and displays a message to the user.