References to Ubuntu 14.04 can be deleted

[richlander]

Ubuntu 14.04 is no longer relevant.

aspnetcore/src/Testing/test/EnvironmentVariableSkipConditionTest.cs

Lines 113 to 150 in bce4dd5

	public void IsMet_Matches_WhenRunOnMatchIsFalse(string environmentVariableValue)
	{
	// Arrange
	var attribute = new EnvironmentVariableSkipConditionAttribute(
	new TestEnvironmentVariable("LinuxFlavor", environmentVariableValue),
	"LinuxFlavor",
	"Ubuntu14.04")
	{
	// Example: Run this test on all OSes except on "Ubuntu14.04"
	RunOnMatch = false
	};
	// Act
	var isMet = attribute.IsMet;
	// Assert
	Assert.True(isMet);
	}
	[Fact]
	public void IsMet_DoesNotMatch_WhenRunOnMatchIsFalse()
	{
	// Arrange
	var attribute = new EnvironmentVariableSkipConditionAttribute(
	new TestEnvironmentVariable("LinuxFlavor", "Ubuntu14.04"),
	"LinuxFlavor",
	"Ubuntu14.04")
	{
	// Example: Run this test on all OSes except on "Ubuntu14.04"
	RunOnMatch = false
	};
	// Act
	var isMet = attribute.IsMet;
	// Assert
	Assert.False(isMet);
	}

@wtgodbe