Updated .travis.yml and removed FUSE-based fuzz testing

While neat, performing fuzz testing at the integration layer didn't
really provide that much benefit since it's already performed in
littlefs itself. It was actually a risk for CI since it depended on the
littlefs-fuse repo. It also broke with the renaming of LittleFileSystem2.

Author: geky

.travis.yml

@@ -1,3 +1,6 @@
+language: python
+python: 2.7
+
 script:
       # Check that example compiles
     - sed -n '/``` c++/,/```/{/```/d; p;}' README.md > main.cpp
@@ -11,60 +14,26 @@ script:
           -n 'tests*'
 
       # Run littlefs functional tests
-    - CFLAGS="-Wno-format" make -Clittlefs test QUIET=1
+    - make -Clittlefs test QUIET=1
 
       # Run littlefs functional tests with different configurations
       # Note: r/w size of 64 is default in mbed
-    - CFLAGS="-Wno-format -DLFS_READ_SIZE=64 -DLFS_PROG_SIZE=64"
-            make -Clittlefs test QUIET=1
-    - CFLAGS="-Wno-format -DLFS_READ_SIZE=1 -DLFS_PROG_SIZE=1"
-            make -Clittlefs test QUIET=1
-    - CFLAGS="-Wno-format -DLFS_READ_SIZE=512 -DLFS_PROG_SIZE=512"
-            make -Clittlefs test QUIET=1
-    - CFLAGS="-Wno-format -DLFS_BLOCK_COUNT=1023"
-            make -Clittlefs test QUIET=1
-    - CFLAGS="-Wno-format -DLFS_LOOKAHEAD=2048"
-            make -Clittlefs test QUIET=1
-
-      # Self-host with littlefs-fuse for fuzz test
-    - CFLAGS="-Wno-format" make -C littlefs-fuse
-
-    - littlefs-fuse/lfs2 --format /dev/loop0
-    - littlefs-fuse/lfs2 /dev/loop0 mount
-
-    - ls mount
-    - mkdir mount/littlefs
-    - cp -r $(git ls-tree --name-only HEAD littlefs/) mount/littlefs
-    - cd mount/littlefs
-    - ls
-    - CFLAGS="-Wno-format" make -B test_dirs QUIET=1
+    - make -Clittlefs test QUIET=1 CFLAGS+="-DLFS_READ_SIZE=64 -DLFS_PROG_SIZE=64"
+    - make -Clittlefs test QUIET=1 CFLAGS+="-DLFS_READ_SIZE=1  -DLFS_PROG_SIZE=1"
+    - make -Clittlefs test QUIET=1 CFLAGS+="-DLFS_READ_SIZE=512 -DLFS_PROG_SIZE=512"
+    - make -Clittlefs test QUIET=1 CFLAGS+="-DLFS_BLOCK_COUNT=1023"
+    - make -Clittlefs test QUIET=1 CFLAGS+="-DLFS_LOOKAHEAD=2048"
 
 install:
       # Get arm-none-eabi-gcc
-    - sudo add-apt-repository -y ppa:terry.guo/gcc-arm-embedded
+    - sudo add-apt-repository -y ppa:team-gcc-arm-embedded/ppa
     - sudo apt-get update -qq
-    - sudo apt-get install -qq gcc-arm-none-eabi --force-yes
+    - sudo apt-get install -qq gcc-arm-embedded
       # Get dependencies
     - git clone https://github.com/armmbed/mbed-os.git
-    - git clone https://github.com/armmbed/spiflash-driver.git
       # Install python dependencies
-    - pip install --user -r mbed-os/requirements.txt
-      # Install littlefs-fuse and dependencies
-    - sudo apt-get install libfuse-dev
-    - git clone https://github.com/geky/littlefs-fuse
+    - pip install -r mbed-os/requirements.txt
       # Check versions
-    - fusermount -V
     - arm-none-eabi-gcc --version
     - python --version
     - gcc --version
-
-before_script:
-      # Patch littlefs-fuse
-    - rm -rf littlefs-fuse/littlefs/*
-    - cp -r $(git ls-tree --name-only HEAD littlefs/) littlefs-fuse/littlefs
-    - echo '*' > littlefs-fuse/.mbedignore
-      # Create file-backed disk
-    - mkdir mount
-    - sudo chmod a+rw /dev/loop0
-    - dd if=/dev/zero bs=512 count=2048 of=disk
-    - losetup /dev/loop0 disk