docs: Remove remaining references to metag

Remove any remaining references to the Meta architecture in
Documentation/, primarily from Documentation/features/.

Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-metag@vger.kernel.org
Cc: linux-doc@vger.kernel.org

Documentation/features/vm/ELF-ASLR/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: | TODO |
     |        m32r: | TODO |
     |        m68k: | TODO |
-    |       metag: | TODO |
     |  microblaze: | TODO |
     |        mips: |  ok  |
     |     mn10300: | TODO |

Documentation/features/vm/PG_uncached/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: |  ok  |
     |        m32r: | TODO |
     |        m68k: | TODO |
-    |       metag: | TODO |
     |  microblaze: | TODO |
     |        mips: | TODO |
     |     mn10300: | TODO |

Documentation/features/vm/THP/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: | TODO |
     |        m32r: |  ..  |
     |        m68k: |  ..  |
-    |       metag: | TODO |
     |  microblaze: |  ..  |
     |        mips: |  ok  |
     |     mn10300: |  ..  |

Documentation/features/vm/TLB/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: | TODO |
     |        m32r: | TODO |
     |        m68k: |  ..  |
-    |       metag: | TODO |
     |  microblaze: |  ..  |
     |        mips: | TODO |
     |     mn10300: | TODO |

Documentation/features/vm/huge-vmap/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: | TODO |
     |        m32r: | TODO |
     |        m68k: | TODO |
-    |       metag: | TODO |
     |  microblaze: | TODO |
     |        mips: | TODO |
     |     mn10300: | TODO |

Documentation/features/vm/ioremap_prot/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: | TODO |
     |        m32r: | TODO |
     |        m68k: | TODO |
-    |       metag: | TODO |
     |  microblaze: | TODO |
     |        mips: | TODO |
     |     mn10300: | TODO |

Documentation/features/vm/numa-memblock/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: |  ok  |
     |        m32r: | TODO |
     |        m68k: |  ..  |
-    |       metag: |  ok  |
     |  microblaze: |  ok  |
     |        mips: |  ok  |
     |     mn10300: | TODO |

Documentation/features/vm/pte_special/arch-support.txt

@@ -19,7 +19,6 @@
     |        ia64: | TODO |
     |        m32r: | TODO |
     |        m68k: | TODO |
-    |       metag: | TODO |
     |  microblaze: | TODO |
     |        mips: | TODO |
     |     mn10300: | TODO |