JDK test-only RFR of 8179452: Remove "intermittent" key from some tests which appear no longer to fail

[Brian Burkhalter]

Please review at your convenience.

Issue:	https://bugs.openjdk.java.net/browse/JDK-8179452
Patch:	[1]

Thanks,

Brian

[1] diff

--- a/test/java/io/FileInputStream/LargeFileAvailable.java
+++ b/test/java/io/FileInputStream/LargeFileAvailable.java
@@ -24,7 +24,6 @@
 /*
  * @test
  * @bug 6402006 7030573 8011136
- * @key intermittent
  * @summary Test if available returns correct value when reading
  *          a large file.
  * @run main/timeout=300 LargeFileAvailable

--- a/test/java/nio/channels/FileChannel/LoopingTruncate.java
+++ b/test/java/nio/channels/FileChannel/LoopingTruncate.java
@@ -24,7 +24,6 @@
 /**
  * @test
  * @bug 8137121 8137230
- * @key intermittent
  * @summary (fc) Infinite loop FileChannel.truncate
  * @library /lib/testlibrary
  * @build jdk.testlibrary.Utils

--- a/test/java/nio/channels/FileChannel/Transfer.java
+++ b/test/java/nio/channels/FileChannel/Transfer.java
@@ -23,7 +23,6 @@
 
 /* @test
  * @bug 4434723 4482726 4559072 4795550 5081340 5103988 6984545
- * @key intermittent
  * @summary Test FileChannel.transferFrom and transferTo (use -Dseed=X to set PRNG seed)
  * @library ..
  * @library /lib/testlibrary/

--- a/test/java/nio/channels/FileChannel/Transfers.java
+++ b/test/java/nio/channels/FileChannel/Transfers.java
@@ -22,7 +22,6 @@
  */
 
 /* @test
- * @key intermittent
  * @summary Comprehensive test for FileChannel.transfer{From,To}
  * @bug 4708120
  * @author Mark Reinhold