Remove tests that depend on casting.

These are important to test (to know how these casts are handled by different connectors) but should probably be brought back in their own test suite.

Author: bgrainger

src/AdoNet.Specification.Tests/DataReaderTestBase.cs

@@ -55,13 +55,6 @@ public virtual void GetBoolean_works()
 				r => r.GetBoolean(0),
 				true);
 
-		[Fact]
-		public virtual void GetByte_works()
-			=> GetX_works(
-				"SELECT 1;",
-				r => r.GetByte(0),
-				(byte) 1);
-
 		[Fact]
 		public virtual void GetBytes_works()
 		{
@@ -100,13 +93,6 @@ public virtual void GetChars_works()
 			}
 		}
 
-		[Fact]
-		public virtual void GetDateTime_works_with_text()
-			=> GetX_works(
-				"SELECT '2014-04-15 10:47:16';",
-				r => r.GetDateTime(0),
-				new DateTime(2014, 4, 15, 10, 47, 16));
-
 		[Fact]
 		public virtual void GetDateTime_throws_when_null()
 			=> GetX_throws_when_null(r => r.GetDateTime(0));
@@ -254,52 +240,10 @@ public virtual void GetFieldType_throws_when_ordinal_out_of_range()
 		public virtual void GetFieldType_throws_when_closed()
 			=> X_throws_when_closed(r => r.GetFieldType(0));
 
-		[Fact]
-		public virtual void GetFloat_works()
-			=> GetX_works(
-				"SELECT 3",
-				r => r.GetFloat(0),
-				3);
-
-		[Fact]
-		public virtual void GetGuid_works_when_blob()
-			=> GetX_works(
-				"SELECT X'0E7E0DDC5D364849AB9B8CA8056BF93A';",
-				r => r.GetGuid(0),
-				new Guid("dc0d7e0e-365d-4948-ab9b-8ca8056bf93a"));
-
-		[Fact]
-		public virtual void GetGuid_works_when_text()
-			=> GetX_works(
-				"SELECT 'dc0d7e0e-365d-4948-ab9b-8ca8056bf93a';",
-				r => r.GetGuid(0),
-				new Guid("dc0d7e0e-365d-4948-ab9b-8ca8056bf93a"));
-
 		[Fact]
 		public virtual void GetGuid_throws_when_null()
 			=> GetX_throws_when_null(r => r.GetGuid(0));
 
-		[Fact]
-		public virtual void GetInt16_works()
-			=> GetX_works(
-				"SELECT 1;",
-				r => r.GetInt16(0),
-				(short) 1);
-
-		[Fact]
-		public virtual void GetInt32_works()
-			=> GetX_works(
-				"SELECT 1;",
-				r => r.GetInt32(0),
-				1);
-
-		[Fact]
-		public virtual void GetInt64_works()
-			=> GetX_works(
-				"SELECT 1;",
-				r => r.GetInt64(0),
-				1L);
-
 		[Fact]
 		public virtual void GetInt64_throws_when_null()
 			=> GetX_throws_when_null(